Teardown of a 2-filament LED lamp with ridiculously simple circuitry.

[@AThreeDogNight]

Hey Clive, I just discovered these bulbs recently & purchased two in a pack with the 4 string of LED's inside & they do put out a lot of light & do not even get warm, not even, WOW!! & with that amount of light, I just love them & save a lot on my utilities running these so I'll purchase more when I have the funds to do so because I mainly live in the dark because of the power consumption even using CFL bulbs, much higher than what these use & are prone to always going out way to soon for the amount of money they cost. That was when I discovered the spiral blacklight & purchased it as well & put it in a lamp directly behind one of these new bulbs, about 5 inches away & I walked away to give the blacklight time to warm up & when I returned to my amazement was that I could see every LED lit up on that string of 4. That's pretty slick to me to able to see the LED's in such a manner as that. Also a update on my little Red LED, it's been almost 3 months now & that thing is still running, two AA's, 1-1K resistor & the LED. WOW!!!!!!! I can't believe that it's still going. I remembered now why I built it though, it's for a cabinet style clock that can never be seen because it's just to dark in here for one & the other is how it's made, it just kind of block lights, but it is really neat in it's design, so I thought about drilling for a LED in it somewhere that might fit along with an LDR, in case it ever does get enough light that is. LOL. OK, I've talked your ear plum off by now. WOW!!!!!!!!! That's a lot, didn't realize, but I was rambling, sorry Clive, it's the pain med's. I'm on they will make me hyper sometimes. Later then Bud.

[@colinkraus7139]

I find your videos wildly intruiging. Can't stop watching them. Facinating.

[@Landrew0]

Brilliant in its simplicity I'd say.

[@loversheretic]

I love your videos, you're an EE genius. Keep making videos, be safe

[@regpollock9403]

It's a treat to watch him solder, and his banter is desert.

[@Madness832]

Recently bought a couple just like yours (along w/ E14 adapters to fit them in American sockets). Mine tend not to flicker so much as to pulsate. That is, they pulse brighter for a split second & do this at regular intervals. Guess I should've bought the versions w/ the plastic skirt below the glass.

[@bigclivedotcom]

Madness832 That's really odd behaviour. Are they being controlled by a dimmer or other form of electronic switch?

[@twocvbloke]

I took the cap off my "lantern" bulb just now, seems it's the same circuit as this one, cap with a resistor to a rectifier with a resistor across the LEDs, naff-all smoothing, yet it's in an ES cap so plenty room for smoothing!! :\

[@bigclivedotcom]

+twocvbloke They're just cheaping out then. Although the capacitive dropper simplicity means it's less likely to get hot and go bang like the switchmode versions.

[@denishraju]

Great Video. Could you tell us what is the purpose of that capacitor//resistor between the line and the bridge rectifier?

[@bigclivedotcom]

+denish raju The capacitor lets a small portion of current through on each half of the sinewave. The resistor is a discharge resistor to prevent a tingle from the lamp contacts when it is unplugged.

[@riottaba]

LED that flicker are abominable vile and just plain nasty.

[@davey2k12]

lol he said which ones this a resistive or capacitive but it stays cold drawn toward capacitive no heat lol ....the ya take it apart mmmm it's got both and diodes lmfao