Venture Metal Halide Universal Bulbs have a good spectral distribution.
Metal Halide Grow lights stimulate plant growth more efficiently than any other grow light source.
It is best to use Metal Halide Lamps in addition to or cycled with HPS grow lights.
Venture Metal Halide bulbs are available in a 400-watt and two1000-watt sizes. The 400-watt bulb is an ED37 shape and produces 36,000 initial lumens.
Its Average Rated Life is 20,000 hours.
The 1000-watt bulbs come in BT37 and BT56 shapes.
They produce 110,000 initial lumens with an Average Rated Life of 12,000 hours.
All of the bulbs are Mogul (E39) Base Types and have a universal bulb orientation.