The Wattage of the light is the amount of energy it takes to produce a certain amount of light. The higher the wattage, the brighter the light, but also the more power it uses.
Solar lighting needs to take into consideration both the Lumens and the Wattage of a lamp. The wattage provides the needed power from the solar power and battery system to power the solar light fixture for the required amount of time and the Lumens determines how much light is given off by the lamp.
Below are some of the examples for Solar Lights with different LED Wattage's:
LED Wattage: 20 Watt (3150 Lumens)
LED Wattage: 1.6 Watt (256 Lumens)
LED Wattage: 4 Watt (400 Lumens)
However, choosing a solar light with higher Lumens and lower Wattage LED lamps will provide the best lighting with the lowest energy costs.
Click Here to know more about different Solar Lights with different LED Wattage's.