i noticed today that my plants started to take a brighter green. my immediate thought was nutrient disorder, but then after some thought doubted that as they are so young. i remembered reading on the carton that it said the bulb made plants greener, and i think that the bulb is the source of the brighter green. the brightness just randomly spread out on the leaves in the area that was most covered by the light that the bulb produced. i was debating whether to lose the light or not when the screw holding it gave out and the light fell and the bulb broke. i took it as a sign. i hope the greeness isn't bad...?