Usage and Safety 
lighting

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