Specification: Product Name: Solar Motion Sensor Light Model: 3837 Solar Board: Amorphous Silicon Solar Panels 5V / 0.3 ~ 0.4W Battery: 1x 3.2V / 400mAh Phosphoric Acid Iron Battery (Include) Light Source: 7x White LED / Unit (Induction lights after 15 seconds) Induction Distance: 3-7m Charging Time: 6-8H Waterproofing Grade: IP44 Main Material: Plastic Color: Black Switch: ON / OFF Whole Body Size: 21.5 x 19 x 10cm Package Include: 1x Solar Motion Light: 1x Rotate Holder 1x Manual Caution: 1.Safe for outdoor operation; 2.Use the same type, new 14500 Li ePO4 3.2A 400mAh rechargeable battery(us rechargeable battery only); 3.Do not mix different battery types, or new and used batteries; 4.The battery must be inserted following the indicated polarities. Ensure that the (+) and (-) terminal are placed in the correct orientation; 5.Keep batteries out of the reach of children; Battery Replacement: Note: This operation should be done in the morning on a sunny day. This will allow the lantern to receive a full 8 hours of sunlight so that the rechargeable battery can reach maximum capacity. 1.Move the power switch on the main body to the OFF position; 2.Remove the four screws on the battery compartment cover on the back of the main unit; 3.Carefully remove the old battery from the compartment by hand and replace with a new 14500 Li Fepo4 3.2V 400mAh rechargeable battery. Ensure that the (+) and (-) terminal are placed in the correct orientation; 4.Replace the battery compartment cover and re-install the four screws; 5.Once assembled, mount your Solar Light to its original surface location; 6.Move the power switch on the main body to the ON position.