Energy Efficient Lights That Should Be Preferred
- Incandescent bulbs and tubelights
The little yellow bulbs which are available in 40W, 60W and 100W are pretty inefficient. 90% of the energy consumed is lost as heat and only the rest 10% is converted into light. These bulbs are definitely cheap but many countries have stopped producing them because of their inefficiency. Tubelights on the other hand are inefficient too but not as inefficient as yellow bulbs. T5 tubelights with electronic ballast are the best fluorescent tubelight available in the market.
CFL is basically a variant of tubelights but they act as a point source of light instead of having a line source like tubelights do. This is the main reason why people think that CFLs produce less light as compared to tubelights even at the same voltage. CFLs are a little more expensive than tubelights but completely worth it as they pay you back in terms of energy savings.
LEDs are the most efficient lighting option we have presently. They last for about 10-20 years without any degrade in their level of performance. LEDs are more expensive than all the other options we have but will pay you back within 2 years. The only issue with these is that their coverage depends on the type of reflectors used in the bulb.
Apart from energy efficient light bulbs, switching to the use of low wattage Gorilla fans can save up to 65 percent of the energy and money. We need to adapt to the use of such appliances to save energy which is very crucial at the moment.