Here’s a cheapo 532nm green laser pointer courtesy of eBay, this one rolled in at £7, with 18650 cell & charger included. Advertised at 1mW, I was immediately suspicious of the output power since this unit quite easily causes skin burns. The warning label rates this laser at Class III,
Continue readingeBay Green Laser Pen – Unexpected High Power
It’s been a bit quiet around here for a couple of weeks, as it’s the run-up to Download Festival here in the UK, so I’ve been busy sorting everything out for that. Just in time a new order has come in! Due to a small accident with the old Maplin
Here’s an eBay oddity – it’s got the same light & lens mechanism as the cheap “disco light” style bulbs on eBay, but this one is battery powered & has a built in MP3 player. This device simply oozes cheapness. The large 4″ plastic dome lens sits on the top
Continue readingeBay Special – LED Disco Light With Built In MP3 Player
As the CO meter I bought on eBay didn’t register anything whatsoever, I decided I’d hack the sensor itself apart to make sure it wasn’t just an empty steel can. It turns out that it’s not just an empty can, but there are some reasons why the thing doesn’t work
I was looking around eBay for decent deals on a branded CO alarm, and came across these for next to no money, so I thought I’d grab one just to see how bad they could be. Popping the casing open shows the very small circuit board inside, with the CO
I’m no fan of power inverters. In my experience they’re horrifically inefficient, have power appetites that make engine starter motors look like electric toothbrushes & reduce the life expectancy of lead-acid batteries to no more than a few days. However I have decided to do a little analysis on a
With a recent order from a Chinese seller on eBay, this little gadget was included in the package as a freebie: I’ve not smoked for a long time, so I’m not too sure what use I’m going to find for this device, but it’s an electronic lighter! Pushing the slider