The HOOVER ONEPWR Cordless Task Light uses a powerful Lithium-Ion battery to deliver LED light to any area you need. Plus, the adjustable rotating head allows you to direct the light beam in any direction. With 130 lumens of light output and 16+ hours of power, youâll never be left in the dark. â The Task Light is part of the HOOVER ONEPWR cordless cleaning system, an innovative family of cord-free, high-performance cleaning products that share the same powerful Lithium-Ion battery for cleaning in and around the home. From hard floors and carpets to upholstery, patios and more, there is a HOOVER ONEPWR product to help you get a complete clean without being tethered to a cord.