Anyone know how a Lunar Sim works?

[phi delt reefer]

3w crees wont dim enough to be used a moon lights. they give off too much par.

you need to use really low power leds to let the photosynthesis cycle "rest" during the night.

try this; http://digikits.com/shop/index.php?c...5c8397b2fb024a

cheap and canadian made/store