Wonder how I missed this video for so long? Another great video though, I really enjoy them, but the wife gets a bit angry when I keep purchasing the products you review I am getting quite a collection now however I have to slow down now that we are living in our RV. Not a lot of room in a 35 footer.
Jerry Ericsson-same as my wife- tell her that she should be happy- in my case i am bending tubes, doing welding and drilling, using my lathe and also buyind loads of electronic parts, learning at night and workind at day time. and when i earn money from my work, i give 90 percent to my wife. that makes her happy again ; )
The designers of these things must just chuck them together to get them out of the door as quick as possible. I doubt any concern is given towards safety or quality control regs etc :/ Interesting tests though Julian TFS.
Thanks. I think this is just bad pairing - the seller has a 20W RGB LED with 6 LEDs per column which would work fine with these drivers. And I'm pretty certain that the new style 1W driver (which uses the MBI6651) would be fine with this LED.
Julian Ilett I had gotten the ones from Sure Electronics too. Used them with the Arduino micro-controller for a high powered mood-light. The pwm pins worked. Eventually one of the drivers failed. I ended up tossing out the whole bunch.
I'll give you a clue:- 35v * 0.33A = 11.55W. A 1 watt driver is going to be dissipating far far too much power as heat. Therefore it WILL burn out. Tell your supplier to give you your money back.
I just took a look at the datasheet and the IC is not really meant for more than 7 LEDs in series. I did note that there is a current sense resistor that could be noticably overloaded by running the driver with 10 LEDs in series. By the way, even though I don't have one of these puppies I'd buy one to study in close detail. I'm suspicious of 'em from the start and what you're doing on the bench will certainly highlight disasters before someone gets burnt.
***** That is not true. More LEDs equal more power supplied from the Driver, but assuming a constant efficiency of the driver it will dissipate more power as well.
So even after scouring the Web for a few days, I can't seem to find a suitable device that will control the mbi6651 led dim function via PWM. I can't believe No one has posted a video showing how to control a rgb led with this dimmer. Any ideas?
K. I have to have it spelled out for me here. A (1-3)x1W LED Driver will provide the constant current needed for a up to (3) - 1W LEDs. Is this correct? So I can use this one driver for 1/2/3, 1W LEDs with heat sinks and not cause a fire, correct? Yes, I'm new to LEDs basically. I have a small mountain of crap to tinker with along the LED lines, but I don't like burning stuff up. hehe Guess that makes me a yellow tinkerer/hacker. :) Anyway, anybody that could give me that answer would be great. I have 1W LEDs that I'd like to use to light the carport in various areas. They will be on a timed PWM solar charger and will run for about 5 hrs into the night. I have plenty of battery and the 100W solar panel should suffice for charging purposes. Thanks for your time in your reply.
Great bunch of videos. I have a question tho. How would you use a dimmer on the drivers? RGB led's need to be able to be controlled so u can get the desired overall color. The drivers shown in your videos provide full current to the colors. I have a bunch of parts coming, and i planned on using a boost converter alone to drive and control the led's. That can get rather dangerous as it could be very easy for someone to crank too much voltage into the led's and burn them out. The drivers specs show that they can be used with a PWM dimmer. how would they be installed on the drivers? there is a single post connection, but i don't see how that would work. Any help would be greatly appreciated.
hey Julian.... Just so you know... epic fails... lead to STELLAR SUCCESS... :) Thanks for the warning for others... You learned what the calculations were... would more than likely not have done this if you were not pretty sure it would have worked...R & D is the basis for everything...
I saw the video tutorial of the NOKIA 5110, and with your fantastic explanation i was able to write my own driver for the STELLARIS LAUNCH PAD makin a few changes to your code.
It's all in the model of the drivers. That ebay page covers all models in the LE-LLxxxxx series. They've packaged up the LE-LL11114 1W driver, when their ebay page also lists the 10W model LE-LL14113 for which the full 30V at 0.333mA makes sense.
I bought this kit too and it looks like we've had the same experience. While the recommended supply voltage range for the PT4115 is 6-30V, the absolute maximum supply voltage is 45V. The PT4115 driver could potentialy output the 32V required by the blue leds with a 35V supply or so. That said, operating outside the recommended operating range probably isn't a good idea.
I have been looking into either the DIM4 or the typhon led sunrise/sunset dimmers. Is there anyway to add a wireless remote control to them? Maybe by using the wireless dimming programmable system off the current USA satellite+ led lights? Add on the current USA satellite+ led lights is there anyway to reprogram it to do a sunrise/sunset and reprogram the lighting/cloud effects? Thank you for your time. Great videos.
You may have put this on another video, I don't know as I haven't watched them all yet, but I was wondering if you could link me to where you bought your boost convertor and your buck convertor please? :)
I want to setup 2 100w rgb from 12v input. I know depends on red blue green input voltage to LEDs but I can't find anything good to control them. With a remote control unit of some sort? That outputs enough? Would you have any suggestions where I could look?
just use the goodol formula P=U I : if you have a 30watt LED lighting up at around 30 Volts, total current equals 1 Amp , sliced in 3 is about 333 mAmps per channel (R G B). In reality every colour has his own consumption, so a good data sheet of the LED should indicate what max current to give to each colour band., orelse you will not have 10Watts per channel since they lightup at different voltages.
Maybe something like this below BUT only ones that can take 35V as this below only can do 30V www.ebay.co.uk/itm/5A-DC-to-DC-CC-CV-Lithium-Battery-Charger-Board-LED-Drive-Power-Module-DE-/231399163792 I use this as current and volt limiter.
Aaaa sorry. I have seen many boost converters on ebay like that. But not sure if the one in this video is from ebay. Would be nice to know where the one in the video are from.
Buck convertter changes a DC voltage to a tightly regulated lower voltage very efficiently, without burning off the difference as heat as a linear regulator would and allowing a higher output current than input current unlike a linear reg. It's like a transformer stepping voltage down and current up, except transformers only work on AC, whereas DC-DC converters like the Buck converter work on DC.
2:50 Are we not going to talk about the use of Comic Sans in a God damn datasheet?!?
+Techy 4198 Comic Sans? Looks like Arial to me
What happened to the fire? I was looking forward to that
+Julian Ilet How did you end up driving these rgb cobs. any solution for running the rgb cob with pwm?
Where can I get Boost and Buck converters like yours?Very nice
I am curious of that as well.
+Bowtie41 Ebay, Banggood, and Aliexpress all supply these converters.
Wonder how I missed this video for so long? Another great video though, I really enjoy them, but the wife gets a bit angry when I keep purchasing the products you review I am getting quite a collection now however I have to slow down now that we are living in our RV. Not a lot of room in a 35 footer.
Jerry Ericsson-same as my wife- tell her that she should be happy- in my case i am bending tubes, doing welding and drilling, using my lathe and also buyind loads of electronic parts, learning at night and workind at day time. and when i earn money from my work, i give 90 percent to my wife. that makes her happy again ; )
Hi I am looking for a led driver for my 12v 50w led chip for a motorcycle headlight project any recommendations please.?
Hmmmm ... 1 watt power supply driving a 10w load = spectacular smoke show. Check the math.
The designers of these things must just chuck them together to get them out of the door as quick as possible. I doubt any concern is given towards safety or quality control regs etc :/
Interesting tests though Julian TFS.
Thanks. I think this is just bad pairing - the seller has a 20W RGB LED with 6 LEDs per column which would work fine with these drivers. And I'm pretty certain that the new style 1W driver (which uses the MBI6651) would be fine with this LED.
Julian Ilett I had gotten the ones from Sure Electronics too. Used them with the Arduino micro-controller for a high powered mood-light. The pwm pins worked. Eventually one of the drivers failed. I ended up tossing out the whole bunch.
John - Orbiter
i.e. China
Hi Julian, do you think you could post links to the ebay items you have bought in the future?
Hi. Could you try to get the 30W RGB chip to work as a WS2811/WS2812 or similar? I miss these LED projects. =P
check out tindie store, I have 20, 50, and 100W WS2811 boards
I'll give you a clue:-
35v * 0.33A = 11.55W. A 1 watt driver is going to be dissipating far far too much power as heat. Therefore it WILL burn out. Tell your supplier to give you your money back.
It's called a 1 Watt LED driver, but in reality it's a driver of 1 Watt LEDs and it can drive more than one of them. It caught me out at first.
I just took a look at the datasheet and the IC is not really meant for more than 7 LEDs in series. I did note that there is a current sense resistor that could be noticably overloaded by running the driver with 10 LEDs in series. By the way, even though I don't have one of these puppies I'd buy one to study in close detail. I'm suspicious of 'em from the start and what you're doing on the bench will certainly highlight disasters before someone gets burnt.
***** That is not true. More LEDs equal more power supplied from the Driver, but assuming a constant efficiency of the driver it will dissipate more power as well.
Ok so more LED'S will equal mote power dissipated. I was under a false assumption about the drivers method of regulation.
how can I drive a 3 watt rgb led driver with pwm capabilities
So even after scouring the Web for a few days, I can't seem to find a suitable device that will control the mbi6651 led dim function via PWM. I can't believe No one has posted a video showing how to control a rgb led with this dimmer. Any ideas?
K. I have to have it spelled out for me here. A (1-3)x1W LED Driver will provide the constant current needed for a up to (3) - 1W LEDs. Is this correct? So I can use this one driver for 1/2/3, 1W LEDs with heat sinks and not cause a fire, correct? Yes, I'm new to LEDs basically. I have a small mountain of crap to tinker with along the LED lines, but I don't like burning stuff up. hehe Guess that makes me a yellow tinkerer/hacker. :) Anyway, anybody that could give me that answer would be great. I have 1W LEDs that I'd like to use to light the carport in various areas. They will be on a timed PWM solar charger and will run for about 5 hrs into the night. I have plenty of battery and the 100W solar panel should suffice for charging purposes. Thanks for your time in your reply.
Great bunch of videos. I have a question tho. How would you use a dimmer on the drivers? RGB led's need to be able to be controlled so u can get the desired overall color. The drivers shown in your videos provide full current to the colors. I have a bunch of parts coming, and i planned on using a boost converter alone to drive and control the led's. That can get rather dangerous as it could be very easy for someone to crank too much voltage into the led's and burn them out. The drivers specs show that they can be used with a PWM dimmer. how would they be installed on the drivers? there is a single post connection, but i don't see how that would work. Any help would be greatly appreciated.
hey Julian.... Just so you know... epic fails... lead to STELLAR SUCCESS... :) Thanks for the warning for others... You learned what the calculations were... would more than likely not have done this if you were not pretty sure it would have worked...R & D is the basis for everything...
I saw the video tutorial of the NOKIA 5110, and with your fantastic explanation i was able to write my own driver for the STELLARIS LAUNCH PAD makin a few changes to your code.
It's all in the model of the drivers. That ebay page covers all models in the LE-LLxxxxx series. They've packaged up the LE-LL11114 1W driver, when their ebay page also lists the 10W model LE-LL14113 for which the full 30V at 0.333mA makes sense.
I bought this kit too and it looks like we've had the same experience. While the recommended supply voltage range for the PT4115 is 6-30V, the absolute maximum supply voltage is 45V. The PT4115 driver could potentialy output the 32V required by the blue leds with a 35V supply or so. That said, operating outside the recommended operating range probably isn't a good idea.
I have been looking into either the DIM4 or the typhon led sunrise/sunset dimmers.
Is there anyway to add a wireless remote control to them? Maybe by using the wireless dimming programmable system off the current USA satellite+ led lights?
Add on the current USA satellite+ led lights is there anyway to reprogram it to do a sunrise/sunset and reprogram the lighting/cloud effects?
Thank you for your time.
Great videos.
If for growing plants indoor. Is the RGB spectrum suffice for this application or other color diodes will need to be added? Thank you!
You may have put this on another video, I don't know as I haven't watched them all yet, but I was wondering if you could link me to where you bought your boost convertor and your buck convertor please? :)
Can I use led driver for 30W in 12- 24V out 30 - 36V I need resistor for red??
In 12 - 24V out 30 - 36V 50W for ristor to red =?
A lot of those RGB LEDs have the notorious 'red' LEDs that are actually orange-red.
+Julian Ilett So expensive and little dangerous project. But awesome.
for 30W RGB Chip seller write: R - 20-22V & 300mA; G - 30-32V & 300mA; B - 30-32V & 300mA
Who would have thought.....
haha , well its gonna get tested now.. when it sais non tested.. you will know it fails :P
The welding glass gives a cool effect to the RGB module
I want to setup 2 100w rgb from 12v input. I know depends on red blue green input voltage to LEDs but I can't find anything good to control them. With a remote control unit of some sort? That outputs enough? Would you have any suggestions where I could look?
osh6767 I would like to know on this as well
Do you have a video of how you put the readout on the 600W converter?
interesting that the blue still came on even when it was burnt out
I bought exactly this setup and powered it using an old printer PSU brick, 36v@1.1A(40w). one of the drivers blew after a few minutes.
Nick Fox If this is the PT4115 driver, I'm not surprisd. 30V max for that driver.
how do you find out that the LED needs 330mA, I have a led without documentation. :(
just use the goodol formula P=U I : if you have a 30watt LED lighting up at around 30 Volts, total current equals 1 Amp , sliced in 3 is about 333 mAmps per channel (R G B). In reality every colour has his own consumption, so a good data sheet of the LED should indicate what max current to give to each colour band., orelse you will not have 10Watts per channel since they lightup at different voltages.
Try this with a 100w rgb led
I have a question: Where did you get the led current limiting circuit, which you use in the video for testing the red,green and blue channel?
Maybe something like this below BUT only ones that can take 35V as this below only can do 30V
www.ebay.co.uk/itm/5A-DC-to-DC-CC-CV-Lithium-Battery-Charger-Board-LED-Drive-Power-Module-DE-/231399163792
I use this as current and volt limiter.
I meant the one that can be set to a specific current, and has a isplay on it and not this piece. But thanks anyways.
Aaaa sorry. I have seen many boost converters on ebay like that. But not sure if the one in this video is from ebay. Would be nice to know where the one in the video are from.
I want to connect 3x 100w led in series. can I connect 3x drivers to power them?
You would need a 3A driver which puts out around 100V as the forward voltages add up but the forward current stays the same.
Could you link the led driver?
Obvious and boring.
What is the buck converter for? What does it do?
Buck convertter changes a DC voltage to a tightly regulated lower voltage very efficiently, without burning off the difference as heat as a linear regulator would and allowing a higher output current than input current unlike a linear reg. It's like a transformer stepping voltage down and current up, except transformers only work on AC, whereas DC-DC converters like the Buck converter work on DC.
+KX36 well put
+5
May I ask, what gauge of cable are you using to connect these components?