What makes LED lights the most preferred lighting product in spite of their high cost than the other lighting category?

Fully agreed that led lights cost little high as compare to others form of lights but the reason behind their peference is first they are very long lasting and if properly handled than hardly defuse and secondly the major fact is led lighs are energy efficient lights i.e. everyone prefer these lights instead of having many other lighting option available in market. LED lights generally is of 1, 2 & 3 watt now see the difference & calculate your monthly electricity usage & then sum up your monthly electricity bill accordingly. This is te basic reason behind the prefernence of led lights.