'fraid this isn't PC-related but this might just still be the best forum for the job. I was looking for lighting for the shower and I found these rather handy 16mm IP67 LEDs My to worries are whether, say, 10 of them will do the job for lighting shower - I'll have something more convential for the rest ofthe room - and what rating of PSU I'll need. For those of you that worry, yes I know there are regs and will have someone in to do the job, but I still need to work out if this plan might work. Many thanks in advance.....
Well they are only 17mA each, so I would assum they are 7-8 white LEDs in series in a nice package, even with 10, you would only need 170 mA, not even a quarter amp. Take 2 12vdc, isolated, wall warts and series them. See if you can find switchmode ones because they will have better regulation then transformer based ones.
Farnell also do several 24V DC regulated adaptors. Rapid's 24V SMPS ones look cheaper, but 2 lots of postage.
I'd be tempted to take it a step further and connect strings in series along with a capacitor and inrush limiting resistor and power them direct of the mains. (obviously assuming they are in a safe waterproof location within the shower...) If you go for the 24V route and it's likely that they could get slightly wet I don't advise using a 24V SMPSU unless it's one of the ones where the 0V output is also mains grounded. The ones that aren't float at about 100V, and although they can only sink a few hundred uA to ground it's actually quite painful.
Thanks for the help but we're back to usign halogen after we got some bargain travertine mosaic tiles and the warm light would look better that the cold LED.
