Inside a high voltage led
A look through a microscope at a high voltage 24-LED array in a tiny 2835 style package. Quick correction, I…
Simplest ryobi and parkside battery connectors
I got the urge to make a battery connector that fits on my Ryobi or Parkside power tool batteries. Thingiverse…
Ip65 led tape coating fail
I was using this tape above my computer for ambient illumination. Over time it imperceivably changed from warm white light…
240v led sign module teardown with schematic
These strings of LED modules are commonly used for illumination in signage with 12V and 24V power supplies. But these…
Hacking kodak lamps
It seems like every famous brand is being slapped on what are a very standardised LED lamp these days. Here's…
This lamp can hurt you in two ways
On one hand this germicidal UVC fitting is quite well made, and on the other hand it has minimalist circuitry…
Pcb based neon fairy lights
A novel twist on a vintage set of soviet neon fairy lights (Christmas lights) that I saw online. I've already…
Triple trouble – when offshoring goes wrong
Two of these 12/24V lithium battery chargers really aren't! It makes me wonder if they're part of the reason they…
Inside a next generation shaped filament lamp with schematic
A new twist on a style of LED lamp I've featured before. But now it's super-refined and optimised for easy…
This psu killed a microsoft surface and a monitor
This unofficial PSU exploded and took out an expensive tablet and the monitor it was connected to. It could have…