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(CFLs) |
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Energy Efficiency & Energy Costs |
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Life Span (average) |
50,000 hours |
1,200 hours |
8,000 hours |
Watts of electricity used |
6 – 8 watts |
60 watts |
13-15 watts |
Kilo-watts of Electricity used |
329 KWh/yr |
3285 KWh/yr |
767 KWh/yr |
Annual Operating Cost |
$32.85/year ~ 700.000VNĐ |
$328.59/year ~ 7.000.000 VNĐ |
$76.65/year ~ 2.000.000 VNĐ |
LEDs use less power (watts) per unit of light generated (lumens). LEDs help reduce greenhouse gas emissions from power plants and lower electric bills |
Important Facts |
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Temperatures in work |
Low |
High |
Very high |
Sensitive to humidity |
No |
Some |
Yes |
On/off Cycling Switching a CFL on/off quickly, in a closet for instance, may decrease the lifespan of the bulb. |
No Effect |
Some |
Yes – can reduce Lifespan drastically |
Turns on instantly |
Yes |
Yes |
No – takes time to warm up |
Durability |
Very Durable – LEDs can handle jarring and bumping |
Not Very Durable – glass or filament can break easily |
Not Very Durable – glass can break easily |
Heat Emitted |
3.4 btu’s/hour |
85 btu’s/hour |
30 btu’s/hour |
Failure Modes |
Not typical |
Some |
Yes – may catch on fire, smoke, or omit an odor |