Literature | Understanding LED
Introduction
LED technology is advancing quickly. Sometimes, there is confusion regarding the
information about LED. By comparing LEDs with other common used light sources, this
brochure helps you to achieve a better understanding of the realities of LED lighting.
Comparisons
General Comparison
|
|
LED
(MP LED72)
|
Compact
Fluorescent Lamp
(GE 13W CFL)
|
Halogen Lamp
(Philips MR16 50W
EXN 36°)
|
Incandescent
Lamp
|
|
Cool White
|
Warm White
|
|
Energy Use
|
12W
|
12W
|
13W
|
50W
|
60W
|
|
Efficacy
|
100 lm/W
|
80 lm/W
|
63 lm/W
|
16 lm/W
|
14 lm/W
|
|
Life Time in Hours
|
50,000
|
50,000
|
8,000
|
3,500
|
1,000
|
|
Life Time in Years *
|
17.1
|
17.1
|
2.7
|
1.2
|
0.3
|
Use of Electricity in
50,000 Hours
|
12W x 50,000h
= 600k
|
12W x 50,000h
= 600kwh
|
13W x 50,000h
= 650kwh
|
50W x 50,000h
= 2,500kwh
|
60W x 50,000h
= 3,000kwh
|
Cost of Electricity
in 50,000 Hours **
|
600kwh x $0.14/kwh
= $84
|
600kwh x $0.14/kwh
= $84
|
650kwh x $0.14/kwh
= $91
|
2,500kwh x $0.14/kwh
= $350
|
3,000kwh x $0.14/kwh
= $420
|
Maintenance Labor Cost
in 50,000 Hours ***
|
0
|
0
|
1.67 x 5 lamps
= $8.35
|
1.67 x 13 lamps
= $21.71
|
1.67 x 49 lamps
= $81.83
|
|
* Based on the usage of 8 hours/day
** Electricity rate $0.14/kwh.
*** Labor cost is $1.67 per lamp, which is based on 4min re-lamping time per track light.
Aspects Comparison
LEDs to Fluorescent Lamps
|
|
LED
|
Fluorescent
|
|
Dimmable
|
Yes
|
Yes
(Color shifting to cooler light temperature)
|
|
Compact Light Source
|
Yes
|
No
|
|
Blink and Flutter Problems
|
No
|
Yes
|
|
UV Radiation
|
No
|
Yes
|
|
Mercury Pollution
|
No
|
Yes
|
|
Breakage
|
No
|
Yes
|
|