Slim size, it won't take up much space in your laptop case, and is perfect for illuminating your keyboard. Luminous Flux.: 950LM Use of environmentally friendly lead-free processes, harmless. Mini LED night light, good for camping, desktop lighting. LED Type: SMD2835 Input Voltage: 5V Power: 10W LEDs are rated to last about 50,000 hours of use and consume little power. Cable Length: 100cm Color Temperture: 4000-4500K( Nature White); 5000-6000K( White); Warm White (2800-3200K) 2 switch button, one for cool white LED, one for warm white LED Beam Angle: 120 degrees Type: USB LED Bar light LED Quantity: 30pcs 30 LED, 3 mode switchable: cool white, nature white, warm white. Material: Aluminum Light Color: Nature White / White / Warm white Compatible with all standard USB device, power bank, mobile charger, computer, laptop. Package:1*USB LED Bar light Noted,it has been upgraded, the button switch of the product has changed, please refer to the last photo