SunPulse 1000W Pulse Start Metal Halide (PSMH) grow lamps are designed to work with certified high frequency (22kHz+) electronic and digital electronic ballasts. 

Sun Pulse offers a variety of Kelvin ratings so you can grow your plants from start to finish.

Which plant spectrum (Kelvin rating) do you need?

Guidelines for non-spinning 1-lamp system:

Seedlings / Cuttings - 4 K Full Spectrum
Vegetative - 6.4 K Day Light Spectrum
Last Week of Vegetative - 4 K Full Spectrum
Flowering / Fruiting - 3 K Red Orange Spectrum
Final Week - 10 K Ultra Blue Spectrum

With single lamp, single spectrum reflector, 3 K Red Orange Spectrum is recommended.

Retail and commercial applications, 4 K Full Spectrum is recommended.

Created by the GAS Technologies group of photo-biologists, plant scientists, mechanical and electrical engineers, gas chemists, and HID lamp designers, these PSMH lamps are designed with accurate solar symmetry for true photochemical reactions in living organisms, greater molecular efficiency in operations, and better color rendering.

Sun Pulse lamps are made with the highest quality and quality control. Even lamp life approx (20,000 hrs) with little color shift or loss of FT-CD output.

Sun Pulse 1000W PSMH Lamps have a 1 year warranty against manufacturer defect.

More info (PDF format)