For explosive vegetative growth and overall plant health, you gardeners should check out a metal halide lamp from one of the best-known names in the world.
This 400-watt G.E. Metal Halide lamp emits over 33,100 initial lumens at a color temperature of 4,000 kelvins, and boasts a 15,000-hour life rating.
For use in metal halide systems only.
$30.95