what is a grow light ballast

Digital 250w 315w Hps Lamp Electronic Electric 1000 Watt Digital 1000W/Greenhouse 110v/220v E...

..., High Power Factor Dimmable , 315W digital electronic This reliable digital has been successf...

for Ceramic metal halide lamp 1000w electronic digital for Run 1000W hps Lamp. Low frequency High power factor ...

... high output but consumes only 400W of electricity, making it more efficient than traditional HID lamps and other plant lamps on the market CONVENI...

...168pcs German Osram SSL80 LEDS, more yield, more energy saving and less heat.Secondary 90 degree optical lens direct downward to magnifies PA...

...: LED full spectrum 650W 315w 500w 630w 600w 1000w cmh hps gorw with reflector for hydroponics Garden supply: High qual...

... System Features Variety of sizes to fit many needs High performance specular aluminum reflectors for highest output Low profile ...

...extra is needed. This LED has UV(ultraviolet) and IR(infrared),it may be not brighter as others, but very suit for plants growin...

720W Remote Control Dimmable Best Led Grow Lamps Strip 8 Bars Horticulture Description LED grow lamps full spectrum 720W 315w 500w 630w 600w 1000w cmh...

36w E40 Socket LED Plant Corn Cob Led Lamps 2835SMD Features of 36W LED Corn : 1. Compatible INDUCTANCE ; 2. IP64 ingress prote...

... 600*238*58mm Efficacy PPE=2.7 umol/J PPE=2.7 umol/J Fixture And housing Extruded Aluminium Extruded Aluminium Input Voltage (Vac) 120-277 ...

We can make it according to your request. Specification Size 496*283*85mm Actual Power 266W~278W Input Voltage AC100~240V Output Current 700mA Output ...

... Tent Lower Cost & High Efficiency: The HortiSpectra's QB seriers use the latest high-efficiency (2.75 umol/J) LED plant tech...