Ergonomic Lighting Systems
Savings Comparison Chart

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Average annual cost to power one hi-output light based on $.085 per KW and
24 hours of service for 365 days.

A. 400 Watt HID (458 line wattage)
458 W x 24 hours x 365 days divided by 1,000 =
4,012.08 KW x .085 electric rate = $341.03

B. ELS HO-101A (166 line wattage)
166 W x 24 hours x 365 days divided by 1,000 =
1,454.16 KW x .085 electric rate = $123.61

Average Annual cost to operate a station using 30 lights:
400 Watt = $341.03 x 30 lights = $10,230.90
166 Watt = $123.61 x 30 lights = $ 3,708.30

Savings For 20 Stations using 30 ELS Lights:
24 hours service = $130,452.00
12 hours service = $ 65,226.00
6 hours service = $ 3,261.00

* Use local power cost and hours of service for each individual calculation.