Cooper Lighting ADH080747 manual $/Kwh

	Lamp Type		Lamp Orientation	Maintained Lumens Life [hrs.]			Input Watts	Efficacy [lms/w]
	1000W	Probe Start MH	Vertical	82,000	10,000		1080	102
	1000W	Pulse Start MH	Horizontal	71,500	9,000		1080	97
			Vertical	96,000	15,000		1100	109
	875W Pulse Start MH		Horizontal	86,000	9,000		1100	98
			Vertical	80,000	20,000		940	106
	750W Pulse Start MH		Horizontal	76,000	12,000		940	101
			Vertical	62,000	16,000		820	100
			Horizontal	47,500	12,000		820	83
	Lamp Type		Average Input	Number of	Operating	Days/		Total Annual	Annual	% Savings
			Watts	Fixtures 1	Hours/Day	Year	$/KWH	Operating Cost 2	Savings 3
	1000W	Probe Start MH	1080	150	10	365	0.10	$59,130	$7,665	13%
875W Pulse Start MH			940	150	10	365	0.10	$51,465
	750W Pulse Start MH		820	150	10	365	0.10	$44,895	$14,235	24%

NOTES: 1 A medium sized automotive dealership typically has 150 fixtures on site. If your dealership varies from this size, savings can be calculated using the following multiplier: 0.67 [100 fixtures], 1.33 [200 fixtures], 1.67 [250 fixtures]. 2 Total annual cost is the cost of operating 150 fixtures 10 hours per day with a national average energy cost of $0.10 per KWH. Annual Cost = (Input watts)*(# of fixtures)*(operating hours)*(days/year)*(KWH/1000). 3 Annual Savings is the money saved by operating 150 fixtures for 10 hours per day with the listed pulse start lamp over the standard 1000W probe start lamp. Annual Savings = (Total Annual 1000W Probe Start MH cost) - (Total Annual Cost Pulse Start MH).

Beyond efficient light source selection, close-of-business site light dimming offers the next level of energy savings opportunities. On average, site lighting installations operate for approximately 10 hours each evening. During this time, only 4-6 hours are during actual business hours. Through close-of-business dimming protocol an average sized dealership could reduce operating expenses related to lighting system energy consumption in excess of 38%. Cooper Lighting’s Hi-Low dimming option enables increased energy savings through an internally integrated dimming relay that reduces power while closely maintaining site lighting uniformity levels that ensure safety and inventory protection throughout the site.

			Average Input	Number of	Off Business	Days/		Total Annual	Dimming
Lamp Type					Operating		$/KWH		Annual	% Savings
			Watts	Fixtures 1	Hours/Day	Year		Operating Cost 2	Savings 3
1000W		Probe Start MH [Full Power]	1080	150	5	365	0.10	$29,565	$11,361	38%
1000W		Probe Start MH [Hi-Low Dimming] 665		150	5	365	0.10	$18,204
875W	Pulse Start MH [Full Power]		940	150	5	365	0.10	$25,733	$9,992	39%
875w Pulse Start MH [Hi-Low Dimming]			575	150	5	365	0.10	$15,741
750W	Pulse Start MH [Full Power]		820	150	5	365	0.10	$22,448	$8,815	39%
750W	Pulse Start MH [Hi-Low Dimming]		498	150	5	365	0.10	$13,633

NOTES: 1 A medium sized automotive dealership typically has 150 fixtures on site. If your dealership varies from this size, savings can be calculated using the following multiplier: 0.67 [100 fixtures], 1.33 [200 fixtures], 1.67 [250 fixtures]. 2 Total annual cost is the cost of operating 150 fixtures 5 hours per day with a national average energy cost of $0.10 per KWH. Annual Cost = (Input watts)*(# of fixtures)*(operating hours)*(days/year)*(KWH/1000). 3 Annual Savings is the money saved by operating 150 fixtures in dimmed operation for 5 hours per day. Annual Savings = (Total Annual [Full Power] Cost) - (Total Annual [Hi-Low Dimming] Cost).

Alternating Fixture Switching

Hi-Low Dimming