The Lighthouse Desk Light is a compact, foldable, super bright desk light with 30 SMD LEDs that can provide up to 100 lumens of output. Two levels of illumination are available of either 100% or 50%. The lamp has a fully adjustable arm that allows the best position to be set to suit the user\'s needs. For added versatility it can be run for up to nine hours using the supplied 4 x AAA batteries or from any convenient USB outlet such as a laptop or PC using the supplied power lead. Please note: Rechargeable batteries may be used in this product but cannot be recharged using the USB input. Rechargeable batteries must be removed for charging. Colour supplied may vary; Black or White.