Many have been recently promoting LED bulbs as the next green bulb of the future, and rightfully so. LED bulbs do not contain mercury, and can last up to 100,000 hours of lamp life. LED also has the distinctive advantage of not flickering, one of the major causes of migraine and fatigue in the workplace. Workplaces found to be using incandescent or halogen have found better productivity due to this, but are not economical. This is where LED have shown some powerful advantage.
But just because the bulb is LED does not mean to say it is environmental. There have been many LED bulbs now being sold or distributed using regular LED bulbs over the supposed bulbs. Others claim to be using CREE LED bulbs when the driver is not of proper quality. What would this all mean to the user? A useless bulb.
The current most efficient LED bulbs in production has a lumens per watt of 105, the same as that of CFL. It is truly no different compared to regular CFL bulbs, and even with 5 times the lifespan (assuming the LED driver is of good quality), the cost of using LED will not be realized.
LED do well in replacing fluorescent, where half of its illumination is on the ceiling, losing up to 70% of its illumination. LED has solved this issue by having only the bottom half of its tube filled with LEDs, giving the same illumination to that of T5 at half the required power.
But as previously stated, several factors should be looked into before purchasing the bulb. Get good information on the LED bulbs being used. Choose highly reputated LED bulbs and check their lumens per watt to ensure that they are indeed very efficient. Also make sure that the LED driver being used is of sound quality. There is also a strong issue on the heat sink. While LEDs do not produce as much heat, it still needs a good heat sink to ensure the product will last long.
Lastly, do the mathematical computation on amount of time needed to run the bulb. Compare savings against lifespan and review if the ROI is feasible. Many companies now are willing to replace LED bulbs for free provided they get a share of the savings. Others will find this feasible.
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