Which lamp is best for your growing needs?
METAL HALIDE LAMPS - This type of light is blue-orientated in the spectrum. It is the best type of light to be used as a primary light source (if no or little natural sunlight is available). This type of lamp promotes plant growth.
Universal (vertical or horizontal) Burning Metal Halide lamps available: 100 WATT-#901620-MH100/U/Medium, 9000 Initial Lumens, BD17-Phil, Syl, GE 175 WATT-#901625-MH175/U/Medium, 14000 Initial Lumens, ED17-Phil, Syl, GE 175 WATT-#901630-MH175/U, 13000 Initial Lumens, BT OR ED28-Phil, Syl, GE 250 WATT-#901640-MH250/U, 22000 Initial Lumens, BT OR ED28-Phil, Syl, GE 400 WATT-#901650-MH400/U, 36000 Initial Lumens, BT OR ED37-Phil, Syl, GE 1000 WATT-#901665-MH1000/U, 110000 Initial Lumens, BT-56-Phil, Syl, GE 1000 WATT-#901675-MH1000/U/BT-37, 110000 Initial Lumens, BT37-Phil, Syl, GE