How many watts of energy for a three-meter garden lamp?
If the LED to 10W, energy-saving lamps about 30-40W
Year cost to come back, long life, or very cost-effective, do not often change so much trouble
Personal recommendation LED lights, although the cost will be more expensive, but a lot of power
, LED lights need to see the light effect is the brightness, and some LED lights 20W will be able to meet your needs
Courtyard needs bright light, energy-saving lamps, then to 65W