Grow Light Operating Cost

Usually in the range of .04 to .12 per KWH. Check your utility bill.
Usually between 12 and 18 hrs per day.

* Kilowatt Hour, 1000 watts running for one hour = 1 KWH

  1000 watt Sodium 600 watt Sodium 400 watt Sodium 250 watt Sodium 1000 watt Halide 400 watt Halide 250 watt Halide
Ballast Wattage 1100 665 464 295 1080 458 295
Cost per Month $52.80 $31.92 $22.27 $14.16 $51.84 $21.98 $14.16
Initial Lumens 130000 89000 50000 28500 110000 36000 20500
Mean Lumens 126000 81000 45000 25600 88000 28800 17000
Mean Lumens per Watt 114 121 96 86 81 62 57
Light Coverage at 2500 Lumens per sq. ft. 7.1 x 7.1
Feet		 5.7 x 5.7
Feet		 4.2 x 4.2
Feet		 3.2 x 3.2
Feet		 5.9 x 5.9
Feet		 3.4 x 3.4
Feet		 2.6 x 2.6
Feet

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