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Ushio MH Conversion Lamps -- 600 Watt Opti-Blue
400W, 600W, 1000W SUPER high output MH with maximized output in both blue and red spectral range. SUPER MH bulb with maximum output in both blue and red spectrum. Outperforms standard MH bulbs. Conversion bulb to operate on ANSI coded HPS ballast. Optimized for maximized branching and vegetative growth, and added red spectrum for flowering efficiency. HID Type: Metal Halide Rated Wattage: 600 Initial PAR (umols): 695 Color Temp: 7000K Average Rated Life Hours: 12,000 Bulb Type: T25 Base Type: E39 Bulb Orientation: Universal Warranty: 1 Year