| Energy efficiency and the cost of lighting |
 |
 |
 |
| The average duration |
30 - 50 000 hour |
1000 -1200 hour |
6 - 8000 hour |
| Equivalent power consumption compared to the traditional 60W bulb (LED bulbs use less power (W) per unit of light generated (lumens) |
6-8W |
60W |
14-16W |
| Annual energy consumption in kWh with 30 bulbs |
330kWh/year |
3285kWh/year |
770kWh/year |
| Annual costs at a price of 0.15 euro / kWh |
49,5 euro |
492,75 euro |
115,5 euro |
| Impact on the environment |
|
|
|
| Mercury content |
No |
No |
Yes - contain toxic mercury |
| RoHS compliant |
Yes |
Yes |
NO - contains 1 to 5 milligrams of mercury in each bulb which is a high threat to the environment and people |
| Carbon dioxide emissions per year by power plants to power 30 light bulbs |
220 kg/year |
2250 kg/year |
1025kg/year |
| Important Information |
|
|
|
| Sensitivity to emperatures |
No |
Some |
Yes - should not work at temperatures below - 22 degrees Celsius and higher than 50 degrees Celsius |
| Sensitivity to humidity |
No |
Some |
Yes |
| Sensitivity to frequent switching |
No |
Some |
Yes - significantly shorten of the life |
| Work at 100% power when you turn on |
Yes |
Yes |
No - the bulb has to warm up |
| Mechanical strength |
Very durable - LEDs are resistant to drops and impacts |
Not too tough - the bubble glass breakage can be |
Not too tough - the bubble glass breakage can be |
| Heat dissipation |
1W/hour |
25W/hour |
8,8W/hour |
| Consequences of failure |
nothing special |
nothing special |
May cause fire, gas emissions containing mercury |
