Professional series grow bulbs – Metal Halide grow bulbs are excellent for vegetation cycle.

For you growers, we suggest using our MH bulbs during the fist 4-6 weeks of your veg cycle.

One can continue with the MH, however, we do suggest switching the HPS bulbs for Bloom cycle.

Specifically designed for growing fast, strong plants.

• 400-watts
• 55000 lumens
• 24000 hours