Using state of the art high intensity LED technology, light duration depending on the product can range from 8 to 60 hours of use from a single charge. The capacity of each lighting head or pod is 2000 lumens at full power, and approximately 30% reduction at the economy power level however, one must also consider the light colour� which is rated at 6000 kelvin. This is the most efficient lighting intensity or colour that one can use when working, bearing in mind that natural midday light is rated at 5600 kelvin.