Energy-saving & Eco-friendly The high-efficiency solar panel charges the battery under the sunlight and the built-in sensor turns on the light automatically at dark. Built-in rechargeable 1.2V 1800mAh NI-MH battery powered by solar energy, no pollution to environment, just bright enough for lighting up in both indoor and outdoor environments. IP44 Waterproof The solar string lights have been tested and certified as IP44 by international authoritative organizations. It is definitely optimal decorating solution for outdoor areas such as patio, balcony, garden, dining areas and etc, so you don't need to worried about rainy day or any bad weather. Long Working Time It will illuminates more than 8 hours at night and gives out bright and charming colorful light once the solar panel absorbs enough sunlight during the day. After charging during the day for 6-8 hours, the 1.2V 1800mAh batteries will provide sufficient power for decorating your gardens, patio, lawn, porch, gate, yard at night. 8 Different Modes There are only two switches: One is convert switch ( 8 modes by combination bright, in waves, sequential, SLO-GLO, chasing/flash, slow fade, twinkle/flash, steady on), another is POWER ON/OFF. Specification: Battery: built-in 1800MA AA NI-MH battery Charging time:6 hours Lumens:200LM Solar panel:2V 200MA Working time:8-10 hours Switch:Power ON/OFF& MODE Life time:100000h LED quantity:200pcs,200 LED at 10cm spacing Control method:light-operated + buttons Cable length:Total length 22M/72ft,lead length: 2M/6.56ft, lamp spacing: 0.1M/0.33ft Note: 1.To maintain a long working life,please do not use it in the water. 2.Please remove the small CAP on the solar panel before using. Please make sure the switch is ON when charging