Solar PowerClip Light LED: uses 3LEDs, each of 4000mcd Battery:rechargeable Ni-MH 40MA Solar Panel:It will take about 6 7 hours to full charge the inside rechargeable battery by the solar panel under the sun intensity is 7000 LUX. It will take about 10 11 hours to full charge the inside rechargeable battery by the solar panel under the sun intensity is 5000 LUX. The available running time: it will be about 2.5 hours under the battery is full charging. It could also be powered by 2pcs "CR2032" batteries, can work for 7.5 hours. Material: ABS Unit size: 9*3.5*1.9cm