ITEM NAME:Solar Lamp Controller 3.7V Solar Lantern Control Circuit Board with Switch Product Description Description: Solar Lamp Controller 3.7V Solar Lantern Lamp Control Board Photo-Induction Circuit Board with Switch Feature: 1. Special control board for 3.7V lithium battery. 2. There is overcharge and over discharge protection inside. 3. Suitable for solar lawn lamp, solar plug lamp, solar spotlight and other circuit control. 4. Equipped with three modes button switch (full power / half power / off). Specification: Material: PC Size: 36 * 23mm/1.41*0.9'' Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-2cm measuring deviation due to manual measurement. Included: 1 X Solar Lamp Controller.Equipped with three modes button switch (full power / half power / off). Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures.