But, like MH lights, they lose effectiveness with use and may need to be replaced as often as every two years, based on how much use they get. 87 reflective EU aluminum A blinding intensity. Although they are more expensive initially, HPS bulbs last up to twice as long as MH, up to five years. 315W CMH Vertical Reflector Overall size: 19-7/8 L 15 W 9 H inch Body steel, with white powder coating. 1X Pair 247Garden 1/8 Heavy-Duty Ratchet Hangers w/Plastic Gear for Grow Light Fixtures/LED Lamp/Reflectors w/150LB Max Load Weight, 5FT Vertical Drop. They are more expensive, so they are often used in combination with an MH bulb (used during vegetative state) to save money on replacement costs.
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