Lawn & Patio: Apollo Horticulture GLK400GW19 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Gull Wing Hood Set - Apollo Horticulture
Lawn & Patio: Apollo Horticulture APL400 Hydroponic 400 - Watt HPS MH Digital Dimmable Electronic Ballast for Grow Lights - Apollo Horticulture
Lawn & Patio: iPower GLBULBM400 400-Watt MH Grow Light Bulb for Magnetic and Digital Ballast - iPower Grow Light
Lawn & Patio: Apollo Horticulture GLBMH400 400- Watt Metal Halide MH Grow Light Bulb Lamp - Apollo Horticulture
Lawn & Patio: iPower GLBULBH400 400-Watt Super HPS Grow Light Bulb for Magnetic and Digital Ballast - iPower Grow Light
Lawn & Patio: Apollo Horticulture GLK400LS24 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Air Cool Hood Set - Apollo Horticulture
Lawn & Patio: Apollo Horticulture GLK400CT24E 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Cool Tube Hood Set - Apollo Horticulture
Lawn & Patio: iPower GLSETX600DHMWING20 600-Watt Light Digital Dimmable HPS MH Grow Light System for Plant - Wing Set - iPower Grow Light
Lighting: SYLVANIA 64490 - 400 Watt - BT37 - METALARC - Metal Halide - Unprotected Arc Tube - 4000K - ANSI M59/S - Universal Burn - M400/U - SYLVANIA
Lighting: LE 150W High Power Outdoor LED Flood Lights, 400W HPS or MH Bulb Equivalent, 12750lm, Daylight White, Security Lights, Floodlight - Lighting EVER
Lawn & Patio: iPower GLSETX400DHMWING20T 400-watt Light Digital Dimmable Ballast System for Plants with Wing Set and Timer - iPower Grow Light
Lawn & Patio: Apollo Horticulture GLK400CTAC 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Air Cool Tube Hood Set - Apollo Horticulture
Lawn & Patio: Apollo Horticulture GLK400UM42 400 Watt Grow Light Digital Dimmable HPS MH System for Plants Vertical Umbrella Hood Set - Apollo Horticulture
Lawn & Patio: Eye 901792 Hortilux Daylight Metal Halide Lamps, 400-watt, Blue - Hortilux
BISS: Morris Products 71118 Dark Sky Wall Packs, MH Type, Mogul Lamp Base, 400 Watts, 120/208/240/277 Volts - Morris Products
Lawn & Patio: Eclipse (TM) Horticulture HPS400 400 - Watt High Pressure Sodium HPS Grow Light Bulb Lamp - ECLIPSE (TM)
Lawn & Patio: XL Indoor HPS MH Grow Light Reflector Hood 35"x29" - AV Prime Inc.
Home Improvement: Moonrays 97142 4-Pack AA NiMh Pre-Charged Rechargeable Batteries for Solar Lights, 1000mAh - Moonrays
Lawn & Patio: 400w Hps/mh High Pressure Sodium Metal Halide Electronic Digital Air Cool Grow Lights Grow Lights System (120v/240v) - Ulti-Lumenx
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400 Mh Light Popular Q&A
Q: 400w MH light equal how much watt led?
A: led lights always give a comparasin in wattage to incandescent lights. All you have to do is look at the packaging to tell the difference. An led light that say... Read More »
Q: Why does the draw form a 400w MH calculate to 455w?
A: Power = Volts X Amps so depending what voltage number you are using you will see some variation. Try your calculation at 110V, and 120V and you will see the dif... Read More »
Q: How to Change an MH Light to HPS.
A: 1. Carefully remove the protective safety glass panel from the reflector hood. You should see the metal halide lamp screwed into the socket. 2. Use the cloth to... Read More »
Q: How many watts does a 400w light put out?
A: A 400w light bulb puts out 400 watts of energy. ChaCha out! Read More »
Q: How high should a 400 w hps light be above plants
A: Higher wattages (400W-1000W) should be place 4 to 6 feet from your ... ...MORE... Read More »