Greenfingers 400W HPS MH Grow Light Kit Digital Ballast Reflector Hydroponic Grow System Kit Gymnastics 5" HDD and one 2

5" HDD and one 2

5-inch Hard Drive Box 50743

Screen quantity: 2

Superspeed 3 USB 3

* High density acoustic foam cell structure

Greenfingers 400W HPS MH Grow Light Kit Digital Ballast Reflector Hydroponic Grow System Kit Gymnastics 5" HDD and one 2The Greenfingers 400W electronic ballast is suitable for use with both 400W High Pressure Sodium (HPS) and Metal Halide (MH) bulbs. It has a 4 phase manual dimming that can help to prolong the lamp lifespan by at least 10% with up to 30% energy savings compared with magnetic ballasts. It also features several protective functions including short circuit, circuit, overheat and lamp failure protection. The bat wing reflector spreads and directs the