No. The amount of UV you would need to make any difference whatsoever would take dozens of black lights, even assuming they are the right TYPE of UV, which I think they aren't.

Concentrate on your basic skills before you start spending money on gimmicks.
stinkyattic Reviewed by stinkyattic on . Black lights for growing Before you say oh noooo black lights are bad for growing because of its spectrum, this will be a SIDE LIGHT i am not mainly using it just running it to produce more UV rays if i get a good response, ive been doin my homework and read that thc is the plants way to protect the buds for when they become mothers, so will my potency increase to near closer to the max for that genetics? i will still be running a ton of cfls 40w's but the black light too if it increases the potency, if anyone knows it Rating: 5