Web$ 119.95 $ 95.96 SKU: GL-HTG0400HPSGL-B Select Options & Buy The HTG Supply 400 watt High Pressure Sodium Grow Light System is preferred by thousands of indoor gardeners across the country for its rock-solid reliability, versatile design, and great price. WebSylvania Grolux Plant Lamp High Pressure Sodium GroLux Light Bulb Grow Plant E40 SA SHP-TS 600W. HPS. 3.9 3.9 out of 5 stars (32) ... BLACK ORCHID BO-NSL-400 400w High Pressure Sodium HPS Lamp,Veg & Flower E40 Light Bulb Hydroponics, 1 Count (Pack of 1) HPS. 4.3 4.3 out of 5 stars (75)
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WebBecause light obeys the inverse square law, the further away the source of light is from your plants, the weaker it is. So light that is 2 feet away from the bulb is 4 times weaker than light at 1 foot away, and light at 3 feet away is 9 times weaker. HPS lights require a ballast to regulate the flow of electricity to the bulb. WebGrowBright 2 Foot 1-Lamp High Output T5 Grow Light. $ 46.95 $ 43.45. AgroMax 4 Foot T5 Bloom Bulbs - 3000K. $ 7.95. AgroMax OTD84 LED Grow Light. $ 109.95. HTG Supply 400 Watt HPS Bulb. to live and die in l.a 1985
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