NOTE: 1. The applicable voltage is 5V, please provide a voltage that matches the rated voltage of the light. 2. This USB LED night light is not dimmable. 3. It might get a little hot after long hours of work, but that's normal. Application: This USB LED Light is an optoelectronic integrated light source module composed of multiple small LED lamp beads, suitable for many devices such as laptops, mobile power supplies, etc. Widely used for night lighting, night reading, sleeping, emergency lighting, camping, etc. Good for bedrooms, bathrooms, kitchens, hallways, stairs and anywhere you need a guiding light. Instruction: Easy to use, connect to the USB interface of the suitable voltage. Then use your finger to touch the fingerprint touch switch on the back, and the light bar will light up. (Note: Only connected to the USB interface will not light up). Advantage: The night Light is made of PC case, high-temperature resistance, and high-pressure resistance. The fingerprint touch switch on the back, is energy saving, low power consumption, durable, long service life. The plug-in LED light is compact and portable, there is a small hole at the top for hanging, and it can also be put into a wallet or keychain, making it easy to carry. Material: Plastics, Metals, Electronics; Light Color: Warm White; Shell Color: Transparent; Rated Voltage: DC 5V; Rated Power: 2W; Lamp Bead: 24; Total Size: 180 x 18 x 9 mm / 7.08 x 0.71 x 0.35 inch (L x W x H); Suitable for: Computer, Laptop/Notebook, Power Bank and other 5V USB Source; Application: Living Room, Bedroom, Home/Office Study, etc; Package Content: 1 Pcs x USB LED Night Light with Touch Switch.