600W Metal Halide Probe Start Lamps produce a blue spectrum light that is used during the vegetative stage of growth.
Giving your plants the right light for each growing stage makes them strong.. Tested and developed to work perfectly with electronic ballast. High lumen output and a wide color spectrum for maximum yield. Standard E39 Base. 1 year warranty.
600w Metal Halide Bulb Features:
WORKS ONLY WITH MAGNETIC BALLAST