Cheapy Chinese lighting panel hacks
Added 2022-10-05 02:49:50 +0000 UTCThis is a redesign of an existing panel to make it even cheaper by basically removing almost all of the circuitry.
But it's OK. Because we can reverse engineer it and put the circuitry back.
https://www.youtube.com/watch?v=V9U2fCE9Sps
Comments
Thanks.
Dave Frederick
2022-10-05 23:21:06 +0000 UTCGuess there's only one way to find out. Smoke is an acceptable outcome. Curious if the regulators can actually deal with a dead short as well, or if they detonate.
iamdarkyoshi
2022-10-05 22:27:21 +0000 UTCI used the R1 position because it had the correct spacing for the capacitor.
Big Clive
2022-10-05 21:59:33 +0000 UTCWith the capacitor across the LEDs the current regulator chips will initially see very high power dissipation as they drop near full mains voltage. Not sure how they'd deal with that.
Big Clive
2022-10-05 21:58:26 +0000 UTCThe resistors were soldered onto the component leads, which was less of an issue than directly onto the aluminium core PCB.
Big Clive
2022-10-05 21:57:09 +0000 UTCNew method of video editing with liquid-paper-tape! Looks like you knuckle-busted your left index... i get those from time to time... Nice to see yyou using the battery powered iron! Great hack! Thanks!
Joel Murphy
2022-10-05 21:52:32 +0000 UTCThey didn't, Clive did, Great thumb nail though, with a bit of editing.
Graham Shaw
2022-10-05 21:25:39 +0000 UTCDildomatic! 😂 It sounds more like a condom dispenser than an LED light! 😂 How do they come up with these names?! 😂
Gadgetman
2022-10-05 18:06:51 +0000 UTCAm I right in thinking the pads you soldered the electrolytic cap to were actually labelled R1 and were for the discharge resistor? Could it go on the unused C1 pads?
Jon Knight
2022-10-05 18:01:28 +0000 UTCI like how you demonstrated all the usual suspects when it came to improving the circuit. It was edutainment for sure!
Mark Warburton
2022-10-05 16:40:05 +0000 UTCPosted this on the vid itself too, but I'm curious what the efficiency and power factor would be like with the capacitor after the drivers instead of before them, that way they're not dissipating extra power. I seem to recall a prior video testing something similar...
iamdarkyoshi
2022-10-05 15:58:55 +0000 UTCThese hacks are great fun, every light bulb in our house has been given the Big Clive treatment !
Mike Hughes
2022-10-05 08:05:23 +0000 UTCDevo BGM lyrics: "Hack it, hack it good."
Curtis Hoffmann
2022-10-05 07:26:55 +0000 UTCVery cool Big Clive. Thanks. I only wonder how much of a hassle was it to solder those resistors on at the end there. Guessing the 500 degree soldering iron was helpful there.
Dave Frederick
2022-10-05 04:50:32 +0000 UTC
