Best 400 Watt Mh Grow Bulb. They also have the same 2100k red orange spectrum and a long expected lifespan of 24 000 hours. Vivosun hydroponic 400 watt vegetative metal halide mh grow light bulb lamp enhanced blue and violet spectrums 36 000 lumens. They retain 90 of their output even after 5000 hours.
The entire system comes well packaged and in working order. This 400 watt bulb is ideal for small to medium grow areas.
Usa federal standard 21 cfr 1040 30 canada standard s or.
Vivosun 2 pack 400 watt vegetative metal halide mh grow light bulb lamp enhanced blue and violet spectrums cct 4200k 36 000 lumens 4 5 out of 5 stars 44 22 99. And has a much better spectrum if you look at the charts. You will get a 400w hps bulbs and a 400w mh bulb. Protopia metal halide grow light bulb mh400wt46 mh 400 watt growing lights for indoor plants 6000k 36000lumens great for commercial applications 1 year warranty 4 0 out of 5 stars 120 15 98 15.
