SailNet Community - View Single Post - Lumen rating Dr. LED "Sidekick" LED bulb E26 base
View Single Post
  #9  
Old 07-10-2012
ebs001's Avatar
ebs001 ebs001 is offline
Senior Member
 
Join Date: May 2006
Location: Ottawa, Canada
Posts: 2,121
Thanks: 5
Thanked 21 Times in 19 Posts
Rep Power: 9
ebs001 is on a distinguished road
Re: Lumen rating Dr. LED "Sidekick" LED bulb E26 base

Here's a price comparison of various light sources. I cannot get it as a chart so read it top to bottom under each heading ie incandescent/$2(19)/60/660/11etc

Cost Comparison




Incandescent

Halogen

Fluorescent

LED (Generic)

LED (Philips)

LED (Philips L-Prize)



Purchase price

$2[19]

$4[20]

$4[21]

$20[18]

$25[22]

$50[23]



Electricity usage

60 W

42 W

13 W

9 W

12.5 W

10 W



Lumens

660

570

660[24]

900

800

940



Lumens/Watt

11

13.6

50.8

100

64

94



Color Temperature Kelvin

2700

3100[25]

2700

3000

2700

2700



CRI

100

100

82

>75[26]

85

92



Lifespan (hours)

2,000

3,500

8,000

25,000

25,000

30,000



Bulb cost over 10 years – @6hours/day

$21.90

$25.03

$10.95

$17.52

$21.90

$36.50



Energy cost over 10 years – @15cents/kWhr

$197.10

$137.97

$42.71

$29.57

$41.06

$32.85



Total

$219.00

$163.00

$53.66

$47.09

$62.96

$69.35



Comparison based on 6 hours use per day (21,900 hours over 10 yrs)

Last edited by ebs001; 07-10-2012 at 08:10 PM.
Reply With Quote Share with Facebook