1.not only used for lighting but also killing mosquitoes. 2. automatically turns on at night and charge during daytime. 3.working hours: up to 8 hours at night 4. Solar panel: Monocrystal or Polycrystal. 5.Voltage/ Capacity: 1.2V /600mAh ( 2pcs of rechargeable Ni-Cd/ Ni-MH battery.) 6.Lighting source: Ultra bright LED ( white 5000-7000cmd ). 7.LED Color:white(1pcs) and purple (2pcs). 8.The lifetime of LED is over 100,000 hours. You never need to change it.