Which is important between lumens and wattage
Lumens refers to the amount of light that a light bar can produce. It is the standard unit for measuring light intensity and is the best way to determine how bright an LED is. For example,the lumens of 120w light bar is 7200 lm while 180w light bar is 10800 lm and of cause 180w light is brighter than 120w light. While watts is a measure of how much electric power is needed to run the light. Higher wattage sometimes means higher luminosity, but this is not always the case, as more efficient LEDs are able to produce an equal amount of light while using less power. In this regard, the lumens of a light bar is the more important measurement to pay attention to.