This 400W hydroponics lighting system represents the best value grow light. The 400 watt advanced electronic ballast supports both High Pressure Sodium (HPS) and Metal Halide (MH) bulbs, giving the grower the flexibility to choose the best selection of light simply by changing the bulb, instead of having to own two separate light systems. MH is used for accelerated vegetative growth, then switch to HPS to encourage flowering, fruiting and budding. Additional Features of Ballast * 400W * Works with both High Pressure Sodium (HPS) and Metal Halide (MH) bulbs * Automatically detects type of bulb installed and adjusts itself accordingly * 9-foot lamp cord * 8-foot power cord * UL-listed, CE certified * One-year warranty on ballast Specifications (Ballast) * Input Voltage: 120V, 60Hz * Harmonic Distortion: * Input Current: 3.52A * Crest Factor: * Frequency (Hz): 25kHz ~ 100kHz * Power Factor: >0.99 * Total Luminous Flux: 41,000Lm * Energy Saving: 30% Dimensions * Reflector: approx. 22" x 18" x 7" * Ballast (WxHxL): 4.25" x 3" x 10.25" (11" including mounting flanges) Note: Plastic protective sheets, if present on reflector, must be removed before use. Package Content (1x) Reflector (1x) High pressure sodium (HPS) bulb (HPS) (1x) Metal halide (MH) bulb (1x) Reflector hanging kit (1x) Digital ballast
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