MAINTENANCE CALCULATOR

EONS Fixture Type

Lamps Per Fixture

Total Number of Fixtures

(select 1 for single fixture comparison only)

HID Lamp Type

HID System Lamp Rated Life (hours)

(50-150W PSMH data is based upon the recommended use of Ceramic Metal Halide lamps for maximum performance)
(Dual arc tube HPS lamps are recommended for use in 250W and 400W to maximize performance)
(Philips lamp data used when available)

Group or Spot Relamp

Relamp @ (hours)

(Group PSMH = 75% of rated life)
(Group HPS = 80% of rated life)
(Spot PSMH/HPS = 100% of rated life)

Days Per Week (in use)

Hours Per Day (in use)

Annual Hours of Operation

Time to 1st Relamp (days)

Time to 1st Relamp (years)


		Key Comparisons

		EONS	Single Lamp Equivalent Product	EONS Savings

Per Fixture Maintenance Cost (lamp(s) & labor)		$	$	$
System Maintenance Cost (lamp(s) & labor)	Total Fixtures	$	$	$
Time to 1st Relamp (days)
Time to 1st Relamp (years)


Note:
Labor and lamp costs are based upon a national average provided by various ESCo's for a single day of service (multiple days will result in increased maintenance costs)
Costs are an approximation only and may vary due to multiple factors: location, total fixtures serviced, # of days required to complete service, etc.
Costs do not include any increases in material and labor throughout the product maintenance cycle (non-EONS products will incur additional costs).