Lighting	Wattage	Estimated Monthly Hours	Energy Use kwh/month	Cost/Month @ 11 cents/kwh
Incandescent Lighting
Incandescent Bulb, Standard 60-watt	60	150	9	$0.99
Incandescent Bulb, Standard 100-watt	100	150	15	$1.65
Incandescent Bulb, Energy-Saving 52-watt	52	150	8	$0.88
Incandescent Bulb, Energy-Saving 90-watt	90	150	14	$1.54
Fluorescent Lighting
Fluorescent Circle Bulb, 22-watt	22	150	3	$0.33
Fluorescent Compact Bulb, 25-watt	25	150	4	$0.44
Fluorescent Light, 2-tube (4’), 40-watt standard ballast	80	150	12	$1.32
Outdoor Security Lighting (Dusk to Dawn)
Incandescent, 150-watt Spotlight	150	300	45	$4.95
High-Pressure Sodium, 2-Bulb Floodlight	150	300	45	$4.95
Mercury Vapor Floodlight	150	300	45	$4.95
Landscape Border Lights (ten 4-watt lights)	40	300	12	$1.32
Holiday Lighting
Miniature 100-Light String	36	120	4	$0.44
Standard 64-Light String	320	120	38	$4.18