Tag: thermal image

99 LEDs E27 Flame Lamps 9W 85-265V 4 Modes Ampoule LED Flame Effect Light Bulb Flickering Emulation Fire Light Yellow/Blue Flame (WHL #53)

For a quick feasibility check for a work project I somewhat recently (end of September) ordered a pair of E27 “flame” lamps. 4.35€ each including shipping, one of each available color – yellow-ish (very warm white) and blue (being a company color).

Big Clive demonstrated these a while back and I had hoped for a bit more oomph. Hence I bought the 9W version. Which turned out to be 9 China-Watts. Well, not even that, which is disappointing and kicked these out of consideration. Too bad, my colleagues liked the effect quite a bit, but it’s clearly too dim for any ambient lighting in larger spaces. […]


CITYSAX 160Ah LiFeYPO4 battery discharge and teardown (WHL #51)

Speaking of electric cars: A colleague recently bought a used electric car and (obviously!) contacted me in order to diagnose/troubleshoot it. Sadly he was able to sell it for a profit before we got it fully fixed, so no live data recordings, no power/torque graphs, no nothing to show here. But he left me a dead cell for which he got a replacement from the seller right away, as the traction battery had voltage dips under load that indicated (at least) one damaged cell.

If servicing individual battery cells sounds a bit strange for a modern electric car, that’s because we’re talking about a CITYSAX from a company that is conveniently named the same. […]