50W LED vs HALOGEN - Endurance & light output test - Bevinsee H7 VC Cooling
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- Опубликовано: 1 июн 2024
- Hi guys! In this episode we'll test one of the brightest LED bulbs I've seen, sent to me by Bevinsee. Let's take a look at how bright these LEDs really are compared with halogen bulbs and how durable they are.
Link to the LED Kit tested: www.amazon.com/dp/B0859T3PH7?...
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Amazing video. Just amazing. The amount of informal you have is worth it.
Top quality content! Appreciate what you're doing.
you deserve way more subs. just found ur channel and happy subscribed as i rly like how you test the bulbs in generel.
Mult succes in continuare, chiar imi plac mult testele pe care le faci. Ura, astept mai multe teste.
what an extensive and comprehensive test this was, keep it up! Subbed!
Highly appreciated for such experiments for comparison. Thank you
Meserie te halesc. Da, felicitari Sergiu pentru test. Multumim pentru toate clipurile minunate.
Well done Sergiu, congrats! (tine-o tot asa)
Thank you for this test. There are many things explained.
Amazing test Sergiu.
Very detailed testing, great video :)
Sergiu, thank you for your content! Just a suggestion: test headlights at 20 meters instead of 3 meters. Testing them at short distance is misleading because the real problem with LED headlights is lack of throw-so that would be great to test. Thanks!
I did that in the next video after this one, I believe. And yes, you're right, that really is a problem.
Thanks, Sergiu! Happy new year! I’m curious if it makes sense to modify the LED bulb that goes into the halogen housing in order to improve the long distance focus of the light. Have you seen something like that in your experiments?
It does not matter what distance you measure, because of the inverse square law of light. If you have a lux value at any distance, you wil always know the exact lux value at ANY distance. The only thing to be aware of is limitations of the lux meter, so the best is to measure at a distance where you have the highest accuracy of the meter.
does super yellow ( and stock my late 60's charger did lighting wise doesn't stay stable as the voltage changes a lot idling vs max-RPM's aka 10v to 14~vdc looks cool to me on the outside like it's a halloween 👻movie car but driving after awhile it's nice to have steady 14v and modernist LED's/laser/blues but doesn't look right for my-car/older models same for angles eyes lighting but i kinda like it RGB for the win lolz 😂) aka 1950-70 USA 🇺🇸 dodge/GM ( or more extreme is probably the 1920's-ish? yellow/dim ) lighting vs modern 6000k/blues-ish tinting makes a difference in dazzling/blinding/reducing-visibility others ( colour only difference as my OEM-60's isn't as bright and use's 50-60A's @ 12VDC i know i tested it the lux parts im not sure as i didn't do any testing as i was more concerned about upgrading the battery to LIF/lithium and the alternator 320A ect vs 40-90~A equipment ) driver's and or yourself rare conditions but can happen , like the snow storm/blizzard in wyoming/I80 i drove in once and because of the high beam/bad light on a 1980's-2010 car afternoon-midnight sorry i forget the details
id guess that dim vs super bright LUX will make a difference in seeing out and chances of dazzling others and or yourself if the conditions are right for it
I am glad to find your channel to see best content thanks !!
Hi Sergiu, Thanks for your honest testing!
Our product is designed with a unique cooling system(mentioned on your title--VC Cooling tech) that helps cool down the bulb's temperature but auto reduces the wattage to make sure the bulb won't be burnt out.
p.s. thanks for your advice！our next product will be a silver one. :)
@B78ERU We also sell on alipexpress, but the aliexpress ones are different from this. We made many series of product, the products on aliexpress is X6 or other series while this is V35 series. You could see the difference between them. We haven't made silver color for this series. Thanks for asking.
Hi Bevinsee....who is your authorised retailer in India. I am looking for H4 led bulbs. Plz provide a link. Thanks
@@bevinseelighting7934 Plz let me know where to source your bulbs in India from?
@@chakrapanid6089 We currently have no authorized retailers in India. If you want to get one, please contact our customer service on Amazon. Thank you.
@@bevinseelighting7934 will you have v35 series on aliexpress?
Excellent content. Plz add a few more LED bulbs from other known manufacturers to your test. You have a fantastic test set up. Thanks
Please please please test gtr Lighting led 2. You're the only channel doing a heat test ! And you've just proved how important these tests are because who cares how bright an led will get if after 20 minutes it's dimmed down so much !
Yes, price wise I'd like to see the expensive brands against the cheaper off brands.
i'm pretty sure he cant buy that in Russia, he will probably have to import.
@@SrUnr3al I think it's Hungary not Russia
Well done, thank you for your effort!
Parabéns pelo excelente vídeo!
E por dividir seu grande conhecimento!
Um grande abraço!
Very good work I appreciate. 👍
Thank you for the informations!
Great job! 👏🏻👏🏻👏🏻
Very good review my friend!
Projector housings have a metal flap that shields light to make that clean cutoff line. So basically you only get about 50% of the total light output of any light bulb. In reflector headlights they have a shroud built into the light bulb or placed very close to it which efficiently reflects light on to the the usable half of the reflector.
Yes i have seen this for H4 type halogen bulbs.
Good job! Congrats!
Thank you Sergiu
This channel needs more subscribers
a trick: you can watch series on Flixzone. Been using them for watching all kinds of movies these days.
@Juan Bo definitely, I've been watching on Flixzone for since december myself =)
Good quality content, please do this tests with 90/100w & 100/130w H4 halogen bulbs.
i love your channel!
Great work. Thank you :-)
Do you have a video on the new type of LEDs that look exactly like the halogens? Some have a fan others don't. There more known for using them as highbeams cause you rarely leave them on for long periods.
Hi Sergiu, like the way you do it, the very important part that is missing is electronic interference. I did test some very bright led bulbs that developed radio interference in a way that the radio lost completely the signal, as there was no antenna! On the other side, led's with active cooler might also develop a plain's engine noise level...but that you loose the radio signal, not worth it but worth testing. Keep the good and clean work, all the best
Good point. Unfortunately, he does not really point these issues out. Most of the cars also throw canbus error codes when using LED lights, since they do not draw that much current as the standard bulbs, so the car thinks the bulbs are burned out. Yes, you will get more light and a nice cool white light, but for what cost? Interference in FM radio receivers, and canbus errors. I think he should mention these things in all of his videos regarding LED retrofit.
GREAT job !!! Thank You
The Bulb didnt lose efficiency as expected, did it? It just drawed less current by getting hotter 🤔
Very nice video!
Great info 👍🏼... thanks
Salut si apreciez foarte mult munca ta , te urmaresc si imi place ce faci deoarece si eu am o problema cu lumina noaptea si am schimbat foarte multe becuri pana am ajuns la F3 si F3S leduri cumparate de pe Ali (faza scurta + lunga ) care pana acum lumineaza cel mai bine pentru mine si au un cut-off foarte frumos si bine definit pe masina mea passat b6 avand faruri valeo cu proiector soclu h7 :)
Nice depection and compare of bulb
Thanks for this video.
Awesome test as usual! :) It would be nice some how to test how mutch they blind the other driver's, if they do !?
Already done 😃 ruclips.net/video/X1L_aFGjmSI/видео.html
Top notch videos.
Sergiu bravo pentru teste dar lucrand in domeniu ma asteptam de la tine sa testezi becurile conform cerintelor ECE R112 deoarece acolo se vede daca aceste retrofituri indeplinesc cerintele, adica sa lumineze cat trebuie unde trebuie.
Cred ca tu stii ca farurile se omologheaza cu masuratori in anumite puncte define in standarde, nu aleatoriu.
La ochi par bune aceste LEDuri dar in teste amanuntite, facute inclusiv de SAE, se pare ca nu indeplinesc cerintele standardelor. Lumineaza prea mult sau prea putin in anuminte puncte cheie. Nici LEDurile OSRAM sau Philips nu indeplinesc conditiile de omologare si nu sunt conforme R112.
Salut Bogdan, si multumesc pentru informații. Nu am știu aceste detalii, dar le-am studiat acum că mi-ai spus. Foarte interesant. Ma gândesc cum as putea sa fac un test asemănător si daca găsesc o locație potrivită, cu siguranță o sa aplic aceste standarde.
Ai mare dreptate cu ce zici. Led-urile de multe ori dau doar senzația de mai multa lumina, dar iluminarea practica pe drum e mult mai proasta. Un exemplu bun pe care l-am văzut e cu localizarea hotspot-ului care la multe led-uri e situat mai jos fata de unde ar trebui sa fie. Asta înseamnă că ai mai multa lumina mai aproape de mașină și păcălește ochiul care nu se mai adaptează pt vederea la distanta și în final, deși lumina e mai intensa, tu vezi mai prost pe drum.
Could you please do a swap test h11 to h9? by how much has the temperature increased?
Top notch. Thanks
Great content
Very informative and detailed review as always! Thank you for all the effort you put into your work!
However, I measured totally different thermals with these LEDs. I measured 153°C on the hot spot in room temp, while testing these bulbs - that is 130°C delta above ambient!
The measuring point in your thermal imaging was way above the CSP LED chips which are the hotspots. My amperage was similar to yours, the fan was working. It burned a black spot on my wood table during the test, after about 1 minute, from 2 centimeters.
The packaging foam which gave you that thick smoke would not burn at the 48°C that you measured.
I would not suggest people to put these LEDs in their cars, as it is possible to damage the plastic headlights. The total heat output is less than from a Halogen bulb, however the beam is more concentrated, it might melt some headlights.
Be careful!
Please share your test results
@@ashokvijay8714 I just measured the temperature of the LED chip after a few minutes with an infrared thermometer and it was 153°C.
How can it melt the headlight when the Halogen bulb goes over 400°C ?
@@alexpascu1985 I did not try this. My theory is that the LED chip has a much narrower angle, (something like 120° instead of 360°), thus a more focused beam. It burned my wooden desk, it was smoking and the wood turned black.
On the other hand, the 153°C that I measured (in open air, not inside a closed headlight) is way over the usual 120° max temperature for CSP LED chips, so they would fail very quickly.
@@azsha1000 i understand your point , i for one was concerned as well that it may damage my lens in the headlight, but since it's not so very close to them I'm hoping it's ok.
Felicitări pentru teste! Eu am din 2017 montate pe mașină LED-uri CSP identice cu cele pe care le ai arătat la inceputul clipului, cu răcire doar pe radiator. Niciun fel de probleme cu ele din punct de vedere al răcirii sau al luminozității. Au 8000 de lmn împreună și le folosesc și pe timp de zi ca să protejez cât de cât halogenele de pe luminile de zi, unde doar un halogen costă cât un set de leduri H7 CSP 😄😄 Așteptăm alte teste.
Din ce ai spus inseamna ca folosesti alte chinezarii proaste . Iar tu spui ca sunt ok. Nu sti ce inseamna un LED cu adevarat valoros si lumina
Great method of testing. Please test more chinese LED headlight bulbs! Thanks!
Hey! If I take the red thing off, put yellow high heat spray paint on it (like you would on a valve cover) would that be fine? I'm looking for a slight yellow tint in my high beam reflector.
One thing I worry about is whether the LED equivalent globe will put out the same light pattern as the original halogen lamp. I guess this would change if the LEDs on the globe were in different positions and a different size to the halogen filaments.
I love that Mk4 Golf headlight housing so much. So sublime.
becurile cu halogen de 100w se vor mai testa?
Toata stima, multumim!
I like that you use Golf Mk4 headlight cuz thats what i have
Ive removed my HID kit as the ballast got faulty. Ive ordered LED H7s and still have the cut out hole on the dust caps from the HIDs. Do you think i should leave the holes to let the hot air out from the LEDs or is this not necessary?
As last a professional and detailed review. Congratulations and please keep up the excellent work. Are you able to recommend a brand of H7 and H15 led for a VW Amarok 2014 . The H15 is a DRL and high beam. The DRL is on constantly
Salutare....te apreciez mult ptr ceea ce faci....am o întrebare, se pot pune și acele leduri și la faza lunga??dacă am tot h7?.ms
Good jop, you have to test the new allalighting ft-bh and the f5 from aliexpress
Great testvideo, really good job!! One more test that would have ben fun to know is a lumen messurement. They allways brag about whitch bulb has the highest lumen output, and it would be a fun test to see if what they claim is what you get.
Lumens are a bit more difficult to measure. Basically, lumens is the total light output of a source in all directions. Lux is the amount of light which falls on a surface. In this case, the lumen rating is irrelevant because if the light bulb is designed poorly, it can not project all that light output on the road. So, in my opinion, the amount of light illuminating the road is much more important than the total light output of a bulb.
Salut. Crezi ca Bevinsee H11 lumineaza mai bine pe faza scurta decat un xenon de 55w intr-un far cu lupa de Mazda 3 BL? Merita sa incerc?
The amazing video
my stock fog light uses an osram h16 halogen 19watts, do you think it would be safe to replace it with an h11 led rated at 30watts? h11 and h16 is the same size it fits. im just worried about the higher number in led watts
This is the second of your videos I have watched (the first one was the H3 LED comparo), and again I was not disappointed by the very good scientific method and video presentation...I would like to comment on the voltages you choose...the 12V is a nominal which is OK for discussion but doesn't represent the typical operating conditions very well...and on the other hand, the 14V is a bit high, again not simulating the typical conditions so well...I suggest you perform tests at 12.6V (V of a fully charged lead-acid Bat, so this would be a without engine running and no Charging Sys output), and also a 13.6 (typical system V when engine is running, and Chg Sys is on-line, pulling up buss V).
Maybe I missed you measuring Wattage at 14V, but you might find that W at 13.6V might come closer to the specified 50 (I expect W vs V could be a non-linear curve also!).
The submersion test was pretty non-realistic test IMO (I'm sure the cooling fan didn't appreciate it, but I suppose then the whole thing was "liquid cooled", and it didn't need the fan!!)...a more realistic test might have been being sprayed from a misting bottle to simulate an under-hood condition with a compromised cover, but I understand you were doing a "worst-case" test... Thanks for a very good presentation, and Greets from Connecticut!
Im pretty sure the bulb needs 12V for 55W, so that would be the correct voltage? Higher than 12V it would get too hot and died early
Nice video. A lot of good info. I had a question. I did let install the h1 LED from Femex in Turkey. The box says 17000lumen. I think its chinese cheap stuff. Im not impressed with the performance. Is it possible to install Osram h1 bulbs on the allready installed canbus box from Femex? Thank you
Bravo!
Salut de unde ai achiziționat acele bevinsee
Mulțumesc anticipat
Ai ceva test pentru h1 led ? As dori sa pun ceva doar pentru faza lunga si sa fie 4300 k . E "depistabil? "
Sorry. Iam confused. Should I use led in projector lens or reflector? I thought we should not use led in reflector as it's not good for opposite drivers?
Do you think is it worth it to upgrade interior and number plate lights to LED bulbs? Philips bulbs are pretty expensive. The advantages that I know of are low consumption 1W vs 5W, the conventional one, brighter light and high lifespan.
Do you think this bevinsee v45 will be bright at least equal as my aftermarket xenon kit in projector headlight of octavia 2 fl?
Currently I have Philips ultinon g2 wich can give 1700 lumens but im not happy with lighting, xenon was much brighter especially when raining
I bought the Bevinsee V35 HIR2 version of these leds for Toyota Yaris Cross projector lenses to replace the halogen bulbs. It works good enough and especially the thermal management is very good - they really dont heat very much. But the HIR2 version has not correct dimensions in compare to the normal bulb - the LED chips are higher that the hot spot of the normal bulb, so the focus is not very good. Also I am seeing some reflections and it can be a problem for other drivers.
What do we do with the driver if we can't fit it inside the headlight. Should be damage the rear headlight cover to run the wire outside of the headlight.
I decided to go for the newer model led bulbs with no driver so I could close up the headlight cover.
Like other are saying we need a test of led bulbs with no driver
hi sergiu... Very impressiv and super job. Very objektiv. So I wanted to buy These bevinsee bulbs. In europe(espacialy Germany)you cant buy them.
Could you tell me how I can get them?
Thank you very much for your time and still merry christmas
Why some leds have a box before the conection plug?! Thanks
Hi all. Question I have is can a Toyota Previa 98 take the led upgrade.
thank you
Salut
La V55 (acelasi producator) ai facut vreun test?
Very informative! You might try cheap vs expensive ones. Like novsight and philips ultinon leds :)
I'm filming it now. It's going to be the next video I upload.
@@SergiuGabor that's good to know! I'm excited on the outcome of the review :)
Graeat chanel
I have nissan washqai j11e and i want to ask how i know what fit to the headlight?i mean what is the max watt i can put on the led bulb?how much lumens will be ok that not disturbe car in front of me?i understand i need h7 and h11 led bulb that true?
What fit to the fog light?
Please help me
Thanks
You no need rotate LED in reflector on 90 degrees?
During operation, an automobile's nominal voltage is 14V, and drops to a nominal 12V with the engine off. Since headlights are normally used with the engine on, testing should be performed at 14V. This will also increase the measured wattage.
Measure the wattage at 14V and it should be close to 50W.
Did you watch the video?
Any options in H7 or H1? Cant find them on Ebay or Amazon...can you link it please? Or T8 or either X6 (both from Bevinsee Aliexpress) series has as much lighting power like this? Thanks Sergiu or Bevinsee 👍
2 Stroke T, We have H7 n H11 in this V35 Series on Amazon. And T8/ X6 is not as bright as this series. Here is the link to V35 you can opt your favorite one. www.amazon.com/stores/page/429FFDE4-D734-482A-9609-331778C47B18?channel=VC%20Cooling%20LED%20Light
Frumos video chiar imi doream asa ceva. Ce vreau sa mentionez este ca cele mai bune LED-uri de pe piata la ora actuala sunt HIKARI Ultra dar nu cele cu varianta 2020. Varianta Hikari Ultra sunt cele mai bune de pe piata la ora actuala din toate punctele de vedere. Chiar asa dori o asemenea comparatie intre pocnitoarele acestea Chinezesti prezentate in acest video si cele Hikari Ultra. Sincer daca vei face acest video intre cele 2 cu siguranta vei face cele mai multe View-uei in segmentul video cu becuri. mult succes si astept acest video
Am văzut câteva clipuri cu LED-urile Hikari și arata destul de ok, problema e ca sunt foarte puternice 12000 lmn, e imens ca flux luminos, te înhata băieții în secunda 2. O alta problema e prețul, nu știu cine se încumetă sa dea aproape 600 lei pe un set.
@@christianpopescu385 12000 lmn nu au atat am eu Hikari Ultra si stiu ce vb. Au in jur de 10.500 lmn. Si stai tu linistit ca nu te inhata baietii datorita cum bat ele. Sunt reglate perfect fara sa orbeasca participantii la trafic nu degeaba au acel pret. iar daca tu spui ca 600 lei este mult pe o pereche de led-uri care sunt cele mai bune din lume, atunci vezi ca te inseli sunt philips si alte marci mult mai scumpe si nu se compara cu Hikari Ultra. Si inca ceva. In momentul cand folosesti asemenea lumini recomandat ar fi sa schimbi farul. Adica sa ai far de tip proiector nu reflector. Reflectorul lumina este imprastiata neuniform asa cum apare pe video. Dar chiar si asa Hikari ultra s-a dovedit ca nu orbeste. Sunt multe chinezari cu 50-100 de lei care orbesc participanti la trafic si acolo te inhata mai degraba baietii. PS Hikari ultra se bat cu multe becuri Xenon Aftermarket chiar si OEM. Iar spre surprinderea ta doar un bec Xenon OEM costa 50-80 euro. si sunt mai slabe sau egal fata de Hikari Ultra. De exp masini din grupul VAG. Si inca ceva de mentionat este ca nu iti da in bord sau stiu eu unde nici un fel de eroare fata de chinezarii. Si tot aici problema intalnita la grupul VAG. Hikari Ultra chiar si asa merita si 200 euro. Si candva au costat acest pret. iar ca si incheiere un set de Hikari Ultra cat te tin aceste becuri nu cred ca rezista masina. Fa tu un calcul cu becuri obijnuite halogen sau xenon la cat timp trebuie sa le schimbi si ai sa vezi ca te costa mai mult si nu ai calitatea Hikari. Iar pentru cunostintele tale HIKARI in Japoneza inseamna LUMINA. Stiu multe despre istoria HIKARI am fost in Japonia la ei si pot vb multe. Si nu este deloc marketing chiar sunt uimit
Ai dreptate, Hikari sunt LED-uri de o calitate mai buna decât cele chinezești. Eu am CSP uri de peste 3 ani și sunt foarte ok, reglajul l am făcut intr- un service bun. Ma saturasem câte seturi de Night Braker și Xtreme Vision am schimbat. Ideea e ca și Hikari și cele chinezești sunt ilegale.
@@christianpopescu385 mai documenteaza-te. Si nu vorbi daca nu sti. Adica eu am Hikari si manualul si scrie clar ca sunt legale. Problema vine la masina. Daca masina este prevazut din fabrica cu halogen iar tu folosesti LED acolo este o problema si nu HIKARI este problema. Pe langa faptul ca internetul este plin am mai fost si la ei in Japonia si stiu ce vorbesc. PS crede-ma ca si tu ce folosesti sunt niste pocnitoare asta din descrierea ce ai spus mai sus
Din ce văd, nu-s chiar așa cum le lauzi. În majoritatea top-urilor din anii 2019, 2020 sunt pe locul 10, plus ca în unele nici nu apar. Din recenzii sunt niște kit uri led Cree medii, dar sunt multe altele peste. Revin la faza cu legislația, absolut toate kiturile led Cree în România și în 90% din Europa, cu excepția Olandei, din ce știu eu sunt ILEGALE. Sa nu-mi spui ca dacă mașina vine cu dotări led din fabrică, care s sisteme complexe de iluminare cu led și tu pui niște banale Cree, fie ele și Hikari, modificarea e legală.
This LED can be perfect for a cars like Japanese Cars, I don't have any dust covers at the back at my Toyota Auris. I can bet it will not loose that much efficiency. Another aspect when we drive i think air also cools front of headlight so it still will have lesser temperatures, probably also that "closed" space is not 100% sealed like you did on that two glasses, because halogen bulbs are more hotter probably there is a little space for heat for that last i'm not sure. Real drop of efficiency at normal use we should except at 6-10%, all depends from construction of the Headlight.
Sa nu uitam ca in de obicei masina este in miscare iar lucrul asta raceste farul, probabil temperatura ar fi mai mica, multumim de test :D
da, dar motorul emană mai multă căldură față de răcirea cauzată de mișcarea mașinii
Can you also test Novsight LED ?
Hi, what about can bus error? Does it have?
Whats better for H7 in reflector? For better ilumination
I am going to buy bevinsee leds but the ones i find are 100W and my halogens are 55w,
Can I still install these LEDs trouble free?
Great video! Please if you can, make a test
between the led and some Hid xenon. I have projector in my car but i dont pretty sure about wich one to use. Plus i live in mexico so it doesn't matter if it's legal or not. Here there is not law about the light of the cars. Thanksss
Good HID is always brighter..
It was quite amazing how long the Led head light bulb lasted even when the fan wasn't working the led head light bulb still lasted even when it got so hot & yes it should have had the right amount of wattage what it was suppose have advertised that's not good I find that it is poor quality but at least the Led head light bulb stood up to the test Kind Regards Peter
Can you test the new Bevinsee series Bevinsee V45?
excelent
Ce firma imi recomandati pt H15?
Multumesc
It is 4am and here I am watching this.
I know the feeling 😅
So what H7 led bulb would you recommend for a projector headlight? Best of the best? Thanks
For building quality choose philips.
Salut , tocmai ce am facut comanda de o pereche de leduri de pe Ali se numesc F5C h7 cica ar avea la 60w pe bec 120w perechea , ele sunt o versiunea mai upgradata si mai noua la F3 daca sti de ele , eu am deja acum pe masina si sunt foarte multumit de cum bat. Abia astept sa vina si sper sa fie macar putin mai luminoase 😀 masina mea passat b6 faruri cu lupa/halogen h7
I added this to my cart but the aliexpress ad says the Bevinsee v35 is 100W 6000k 🤔
tare tricou ❤🙏✌
Sergiu, if possible please try the Nighteye LEDs!
In the next episode.
Nighteye was renamed to Bevinsee, or its same thing really. Packaging is all the same.
@@oli31 I bought Nighteye as Nighteye on ebay 1 month ago
@@oli31 No
What about f3/f5/p1? Can you test them?
Why is it that lights placed in reflector headlights produce so much more light (lux) than the same light in a projector headlight?
The light in the projector headlights is more even without a brighter spot of the reflector headlight. If you measure the light output in any other spot light output from a projector headlights should be higher. You can see this effect in this video with halogen lights more clearly.
Testele de la început cu intensitatea le-ai făcut cu led-ul abia pornit sau după ce s-a încălzit? Adică din valoarea aia mai scazi pierderea de 30% sau e deja scăzută?
Este deja scăzuta, deoarece până îmi pregătesc treburile pe acolo are timp sa ajungă la temperatura normala de funcționare. In general durează cam 15-20min până fac măsurătorile.
Hey!, can you try LED ZES you'll find that one on the AUXITO brand