PDA

View Full Version : how many leds for a ats ?



Ancistrus
01-26-2013, 05:01 AM
Hello, i want to build a 10x7cm one-sided ats. How many 3W Power led's am i need and what color ?

Also how much must be the distance between the leds and the screener ?




Thx.

cdm2012
01-26-2013, 05:50 AM
Hello, i want to build a 10x7cm one-sided ats. How many 3W Power led's am i need and what color ?

Also how much must be the distance between the leds and the screener ?




Thx.

Hello!

Try this link to guide you in your build: https://public.sheet.zoho.com/public/cdm2013/ascalculator-xls-1

It appears you may need to use (2) 660nm (red) 3-watt LEDs at about 2.5cm to 5cm away

SantaMonica
01-26-2013, 07:04 AM
Welcome.

Really try to do a 2-sided if you can.

kerry
01-26-2013, 10:04 AM
Hello!

Try this link to guide you in your build: https://public.sheet.zoho.com/public/cdm2013/ascalculator-xls-1

It appears you may need to use (2) 660nm (red) 3-watt LEDs at about 2.5cm to 5cm away

Thats a nice little guide!!!!!

Ancistrus
01-30-2013, 01:58 AM
Thanks ! nice guide !


I ordered two red led's at 600-660nm, are ok ?

kotlec
01-30-2013, 04:29 AM
660 ok
600 not ok

Ancistrus
01-30-2013, 04:53 AM
The 2 led's have a wavelength between 600 and 660nm. Not one at 600 and the other at 660.

Floyd R Turbo
01-30-2013, 07:00 AM
there is a big difference between 600 and 660. So for someone to give you a range that large, they are supplying you with bottom of the barrel LEDs, essentially a grab-bag of rejects most likely.