Skutch
Member
Hi,
Fiddling with electronics/micro-controllers is a hobby of mine and I'm thinking of building my own Led growlight.
I (basically) know why different colours are used, I know about narrow bandwidths of LEDs and why it's best to use different colours red and blue.
Since I use cfl now and only bought 'standard' leds so far I'm wondering... Do you actually see the difference between ~625nm and ~660nm leds or ~445nm and ~470nm leds ? Or is each red(/blue) led about as red(/blue) as the next ?
I know it would be best to buy top-quality leds, it's easy to find data sheets for those and be sure I get the right ones. Lots of cheaper Leds are sold in different nm-ranges as well though, but since sellers themselves often can't find data sheets of what's sold, I need some way to tell whether the colours are right.
Fiddling with electronics/micro-controllers is a hobby of mine and I'm thinking of building my own Led growlight.
I (basically) know why different colours are used, I know about narrow bandwidths of LEDs and why it's best to use different colours red and blue.
Since I use cfl now and only bought 'standard' leds so far I'm wondering... Do you actually see the difference between ~625nm and ~660nm leds or ~445nm and ~470nm leds ? Or is each red(/blue) led about as red(/blue) as the next ?
I know it would be best to buy top-quality leds, it's easy to find data sheets for those and be sure I get the right ones. Lots of cheaper Leds are sold in different nm-ranges as well though, but since sellers themselves often can't find data sheets of what's sold, I need some way to tell whether the colours are right.
