Poundland Pifco Penny-Pinching LED lamp. (Hack and schematic.)

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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