Solar Ice Cube Lights gather energy during day under sun and automatically illuminate at night.Automatic operation, convenient to use.Perfect for your pathway, driveway, yard, garden, holiday decoration etc. A creative decoration in garden to make romantic atmosphere. Product Specifications: Size: 10cm x 10cm x 5.5cm / 3.9x3.9x2.2inch Light Source: LED Switch Options: ON/OFF Battery: 1*AAA 1.2V 400mAH Charging Time: 8hr Working Time: 6-10hr Water Resistant: IP65 Note: 1. Turn on the switch and place the solar brick glass light in the desired position.Please make sure the switch is correctly in the "ON" position, check by covering the top surface with your hands, see if light turns on automatically .(Note：Switch must be open, only in the case of open switch, the battery can be charged during the day,Light at night.) 2. Select an outdoor location which away from other light sources at night,such as street lights.Shady locations can hinder the battery from fully charging, which can result in a shorter battery life. 3. Please don't put them into water directly. This solar brick light is not submersible and isn't confirmed to withstand extreme weather conditions such as hurricanes and tornadoes.