My all time favourite hackable lamp is back under a different brand. But there's a catch.... They've skimped on the LED count on the three watt one. Here's how to convert these lamps into ultra low power 24/7 ambient lights.
I almost got Electroboom's catchphrase right. It's FULL BRIDGE RECTIFIER-ER-ER-ER-er-er!
https://www.youtube.com/watch?v=sI5Ftm1-jik
The little rectifier is rated at 0.8A and would get pretty hot if you ran it near that.
Yeah, I did mostly completely miss the resistors with the solder when I was trying to fumble inside the lamp housing. The dissipation of the resistors will be a miniscule 50mW each for the 10 LED lamp and a slightly higher 100mW each for the 5 LED lamp. That's a fraction of their power rating. I wonder what component would fail first if left on continuously for decades.
The Pifco lamps are available from Poundland in 3W and 5W ratings (get the 5W for mods) and in e27 screw base and B22 bayonet cap base. There may be a colour option, but I just saw warm white.
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16 thoughts on “Poundland pifco penny-pinching led lamp. hack and schematic.”
  1. Avataaar/Circle Created with python_avatars DaveGuerreroTijuana says:

    Where'd you get those glasses?

  2. Avataaar/Circle Created with python_avatars bikkiikun says:

    Did you leave the 1MOhm resistor (the one across the cap, that you removed) in the circuit on purpose?

  3. Avataaar/Circle Created with python_avatars george manson says:

    where can you get good leaded solder?

  4. Avataaar/Circle Created with python_avatars Ipsum the Purple Wuss - Loud Nation says:

    Penny pinching

  5. Avataaar/Circle Created with python_avatars lookoutleo says:

    why 2 47k and not 1 x 100k?

  6. Avataaar/Circle Created with python_avatars Jonboynz says:

    I love your idea of a party, vibrators and fairy lights! Just what you need on a dark and stormy night.

  7. Avataaar/Circle Created with python_avatars wbfaulk says:

    You should tell the people of Flint, Michigan about your assertion that water doesn't dissolve elemental lead.

  8. Avataaar/Circle Created with python_avatars HelloNotMe says:

    "The bigger the gob, the better the job!" — Louis

  9. Avataaar/Circle Created with python_avatars Mark Odenbrett says:

    An always dark wedding lense well allow you to look directly at the leds,I have found if you make a way for it to hover over them is the best that way you can still see what you are doing

  10. Avataaar/Circle Created with python_avatars Jason McKain says:

    thanks Clive. RLTW!!

  11. Avataaar/Circle Created with python_avatars der.Schtefan says:

    His three phase FBRs are called "EVEN FULLER BRIDGE RECTIFIER".

  12. Avataaar/Circle Created with python_avatars Electrodoc1968 says:

    I can't work with the lead free bird sh*t producing stuff either.
    Maybe if the manufactures made decent stuff which hasn't been designed to fail straight after the guarantee has run out..
    Maybe that would stop so much landfill.?
    Most LED Tv's burn out unless you specifically know to turn down the LED backlight brightness and turn off auto eco mode.
    Try changing one of those LEDS with lead free.. Rant over. Lol

  13. Avataaar/Circle Created with python_avatars mark layton says:

    Pifco used to be a good company – they made some really good christmas lights in the 70's and 80's and various household gadgets …… im not sure if pifco is the same company now though ?

  14. Avataaar/Circle Created with python_avatars Leatherkid๐Ÿ‡จ๐Ÿ‡ฆ says:

    I use leaded solder ๐Ÿ˜ˆ๐Ÿ˜ˆ

  15. Avataaar/Circle Created with python_avatars Jim Nichols says:

    I would love to get a chair, get inside your head and sit back with a beer and watch the absolute fight of fancy that your mind dances through. You know your electrical stuff inside and out, and you are ADHD to the max, like a rubber ball bouncing around in a library filled with information creating a flurry of pages of said information to take flight. You are simply amazing to watch.
    We must be brothers somehow. I am an idiot savant but more idiot than savant and have that same ……"let me work in this programming" …….. but "OH LOOK A SQUIRREL" going on 25 hours a day.
    Clive slow down there is time to learn all that information!

  16. Avataaar/Circle Created with python_avatars BedsitBob says:

    PIFCO no longer make vibrators?

    I imagine a lot of women will be sweating on that, or maybe not . ๐Ÿ˜

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