1. The USB 12v LED Reading light is ideal with the featured USB ports to charge your mobil phone, ebook reader and all your other USB gadgets. 2. This reading light is used for reading in camper trailers, caravans, boats, cabins and so on. 3. Equipped with a programmed switch, you can adjust this light from a blue indicator light to cool white for task illumination. The blue light provides an amazing decorative effect; meanwhile you can use it as your bedside mood light. 4. Manufactured with high quality LED chips as well as innovational optic lens technology, it provides an even spread of soft light without the eye strain. 5. A flexible arm provides adjustable lighting direction for your reading convenience. Operating voltage: 12V DC Lighting color: Cool white/blue Lighting angle: 120 degrees Low power consumption: 0.14A, 1.9W Luminous flux: 100 luminous USB port on light base, USB Output: 5V, 2.1A Button switch at the base to adjust the different phases of lighting Flexible arms to adjust lighting direction Portable and vibration-proof Long life span reaches 50,000hrs Weight: 121g ea Base diameter: 60mm, Length: 139mm Package Include: Two pieces of Flexible arm Cool White/Blue Reading Light Mounting screws