ITEM NAME:HW-680 9-26V 3 Series 11.1/12/12.6V Li-ion Power Level Display Board Panel Product Description Description: Specifications: Product Size: 29 X 15 X 3 mm/1.14 X 0.59 X 0.12'' Product Weight: 2 g Input Voltage Range: 9-26 V Notes: 1. Input positive and negative cannot be reversed. 2. You need to press the switch to display the electricity. If it needs to be displayed all the time (consume 20 mA current), short circuit the welding of the left and right feet of the switch. 3. 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! 4. Please allow 1-3mm measuring deviation due to manual measurement. Included: 1 X Power Level Display Board.You need to press the switch to display the electricity. Included: 1 X Power Level Display Board. 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.