There is a cabinet hinge LED lighting system, which you can install on your hinge. After inserting the battery, the whole case lights up when the case is opened. You don't need to take a flashlight with you if you find something in the closet. Batteries not included It is easy to install and convenient to use. Specifications:Voltage: 12VMaterial: ABSLight source: LEDColor: WhitePower supply: 23A 12V batteryBattery is included: No.Installation:1: Open the hinge screws on the back sheet first2: The screws and hinges on the back sheet are screwed together3: This LED light battery4: The LED light pre-installed in the board on a good film5: The thickest tightening is completedNotes: As we showed, our LED hinge does not fit all types of hinges.; It usually fits the hinge, which is used to remove the screws on the hinge. If your hinge is the same as the one shown in the photo, it is not necessary to use the screws we provided. In order to meet the requirements of many DIY customers, we offer 10 screws as a gift so that they cannot be mounted on the hinges directly in your cupboard. Very convenient to use. Packing List: 1/10PCS NotePlease allow 2-3cm differs due to manual measurement. Besides different computers display colors differently, the color of the actual item may vary slightly from the below images, thanks for your understanding (1inch=2.54cm)