LED Garage / Shop Lights?

I have 4 LED high bays in my 30 x 40 shop and they put out about 70 foot candles avg or 26,300 lumens each.
High bays are shown here LED High Bay Light, High Output - 220W and are bout $220.00/each. That's cheap considering they replace 8 400-watt HID lights (14,000 lumens each) and they only pull half the wattage.
Payback (energy savings) at $0.11/kWh takes about 4 years. From then on your saving about $105.00/year on electricity usage. That saving is based on using the shop every day for an hour. Saving increases the more you use your lights.

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