Electrostatic glitter effect
A random experiment I was revisiting where I applied a very high voltage at extremely low current across two electrodes…
Exploring a 500 led ebay light string with schematic
Sometimes I wonder how many of these dangerous strings of lights have been sold via eBay and other grey import…
Vintage projection display teardown
I think I bought these from a shop called RME in Glasgow many decades ago. They're "IN-LINE" projection displays manufactured…
Inside a philips xtreme surge device for street lights
This is a unit that Philips use in some of their LED street lights to protect the LED drivers from…
Nitro obd2 unit with interesting circuitry
Another Nitro OBD2 "Performance chip tuning box". While there are actually real systems for adjusting the engine management settings on…
5000w solar led street light
An interesting light, but also a prime example of how eBay sellers are very prone to out of control exaggeration…
Ink cartridges are complex inside!
Aside from making a huge mess, it took a surprisingly long time to reverse engineer this cartridge due to the…
How much ink is in epson cartridges?
If you print a lot of glossy photos you will know how annoying and expensive it is when an ink…
Cable test ends in flames
This was a 5A current test on an excruciatingly thin copper coated steel cable supplied with a dangerous product purchased…
Dangerous death dalek lights still on ebay
I've featured these lights before, but it's surprising that they are still being sold on the eBay platform. Presumably these…