Solar Panel(monocrystalline silicon) :0.24W 2V 120Ma Characteristics : The solar bulbs are made of impact-resistant plastic,4 solar panels ,1 replaceable rechargeable battery and 5 LEDs .It is the size of a standard bulb and can withstand tough outdoor conditions. Package:48PCS/ CTN N.W.: 3.6KG Description: 1)Switch Type: the manual control and the automated (Optional) ; 2) Daily Operation Time: about 5-6 hours,( its normal working time is no less than 5-6 hours every night and depends on the sunshine daytime.if there is no sunshine within 3-4 days , solar bulbs will consume 1000mah electricity energy) ; 3) Days to full charge: about 3 days( solar bulbs are fully charged unless there is strong sunshine for three days ) 4) Number of Leds : 5leds ( the LED lighting source is 2300 lumen) ; 5)Battery Type: Ni-MH Battery ( installed 1000mah Ni-Mh inside)