120V DC-DC Buck Converter Hack!

Just a quick video I sliced together going over a modification I found while messing with these common 120v buck converters because I needed a specific output voltage.
Heres a link to the ones shown in the video:
www.aliexpress...
Spec your purchase for the 120v max input range and 3A for the current range and you should get the same ones I am using with the heatsync.

[@TheWillDConstruct]

Audio in this one is a bit quiet I apologize.

[@Kiran55haha]

Why is this video so underrated when it is based on direct ac to dc to buck

[@lezbriddon]

I have 4 of these sl3038 buck converters in my little e-motorcycle to do 12v and 5v from the 84v battery, I didnt trust the claimed 3a output so put a pair in parallel to run the 36w12v headlight, also did another 12v one just for the mechanical horn as i didnt want any back emf failures to kill my other needed electrics. (alarm, gps etc)
so far they have been in over a year and no issues, so impressed with them i put one on my e-mtb for 12v for the qc3 phone charger off its 42v battery, oddly i'm on my 3rd one in 7 months which is weird, i'm stuck with them on the big bike as its 84v, but i think for the e-mtb i may switch to lt3800 based bucks as a better design (external fets) but only 60v rated.
Glad i found your video, all my boards have the part number lasered off so now i can buy some spare chips.

[@danielcrockett8351]

You bastard.. I shat myself when it *blew up at 3a

[@TheWillDConstruct]

Wasnt me

[@auden_builds]

finally watching the vid, that ceramic resistor looks familiar

[@TheWillDConstruct]

I bought them off the black market 🦆

[@fellpower]

Ahh, im with you. all that plastic bags, u cant open....i abolutely, what u feel....

[@SaiyanEuc]

I had one like this, my carve power slide charger but I messed up the connection to where the battery connects

[@auden_builds]

DC TO DC DUCK 😮

[@quinnfoster1234]

DUCK
DC
DC

[@TheWillDConstruct]

Quack 🦆

[@uhjyuff2095]

@@TheWillDConstruct lol