LED Basics(3) - Wattage

A good rule of thumb, is LED's use about 1/5 of the energy of their equivalent incandescent flood replacement and 1/2 of their equivalent compact fluorescent (CFL) replacement.

• A 15W candle light would need to be replaced with a 3W LED candle light
• A 15W fluorescent tube would be replaced by a 7W LED tube. 

Many manufacturers exaggerate the amount of light their bulb will give out. To shop smarter, multiply the energy usage of an LED bulb by 5-7 times to get an idea of the incandescent bulb it can replace.

Be cautious of manufacturers claiming their bulbs are any brighter than this, since this more than likely will not be the case - i.e. a 10W LED bulb that replace a 100W incandescent bulb (10 times). As technology improves, LED bulbs will get brighter for less energy, whereby we'll update this number accordingly.

Item	(6000K)	CFL	Halogen Bulbs
Life Time	35,000 hrs	6,000 hrs	3,000 hrs
Typical Power Consumption( =A)	10.4 W	23 W	60 W
Typical Power Consumption per year (12hrsx365day/KWh)*A=B	45.55 KW	100.74 KW	262.8 KW
CO2 Quantity (Kgs/year) (0.637*B=D)	30 Kgs	65 Kgs	170 Kgs
Energy Saving Rate (Compare with CFL)	55%
Energy Saving Rate (Compare with Halogen Bulbs)	83%