400w Powerplant Super Metal Halide Retro Bulb - MH

Metal halides have the more balanced spectrum. The light they give out has a significant amount of light from the bluer end of the spectrum, which the plant uses to grow vegetatively. It produces plants with a small internodal length, with large leaves and thick stems. It produces the most natural looking plants. It simulates the light from the beginning of the year and is good for plants before they're switched into flowering mode. They're normally slightly more expensive than HPS. Recently, there have been 'enhanced spectrum' MH bulbs produced which also give off a significant amount of red light. Conversion bulbs are also available which plug into HPS ballasts which are actually MH bulbs. Useful for changing the light balance without changing the ballasts also. In the event of a power failure, they need about 20 minutes before restating. They may restart earlier but it shortens the life of the bulb quite dramatically to try and start a hot bulb.

Power Plant HIT/HBU/LU Metal Halide Lamp 

Power Plant Metal Halide lamps promote optimum vegetative growth and flowering.

Provides a richer more nutritious light

Compatible with standard HPS ballasts and ignitor systems. Lamps can simply be changed to maximise growth protential.

Available output; 250w, 400w and 1000w.

We recommend that lamps are replaced every 12 to 14 months, after 14 months there is an appreciable drop in the lumen output leading to a reduction in crop yield 

600w Powerplant Super MH Retro Bulb - Metal Halide 250w hps = 23,000 lumens
600w Powerplant Super MH Retro Bulb - Metal Halide 400w hps = 38,000 lumens
600w Powerplant Super MH Retro Bulb - Metal Halide 600w hps = 51,000 lumens
600w Powerplant Super MH Retro Bulb - Metal Halide 1000w hps = 100,000 lumens