Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

Replying to myself

On 04/11/13 22:45, James wrote:
>
> I did see somebody had used an LED strip tape once which had UV leds
> on it, but havn't been able to find led strip tape in UV myself.

Huh, what do you know, I looked on ebay today and found a bunch, I'm
sure I've looked before, maybe I just thought they were purple or
something but checking the wavelengths they come in at 395-405nm which
is right at the top end of UV, but should be close enough, wide angle,
come in 60 per meter or 120 per meter, I expect about 500mA per meter
for the 60's and an amp for the 120's, at 12v.

For those not familiar with this type of LED strip, it's self adhesive
and can be cut every 3 leds (the strip is constructed of sets of 3 leds
in series with a current limiting resistor, and each set paralleled
across a power bus running the length of the strip).

First couple listings I found specifically for UV...
5M 300:
http://www.ebay.com.au/itm/16-4ft-5M-UV-395nm-3528-SMD-Purple-300-LED-Flex-Strip-Light-Non-Waterproof-12VDC-/310772608885?pt=LH_DefaultDomain_0&hash=item485b7daf75&_uhb=1
5M 600:
http://www.ebay.com.au/itm/5m-UV-ultraviolet-Non-waterproof-3528SMD-600-LEDs-500CM-flexible-LED-Light-Strip-/141105009197?pt=US_String_Lights_Fairy_Lights&hash=item20da83922d&_uhb=1

I'm currently building myself a new UV (and visible) box, might go this
route. I guess it wouldn't be as well collimated being wide angle as my
narrow angle 5mm leds at present, but I really don't think it would make
any appreciable difference, the ease of construction would more than
make up for it.