About this item Adjustable Lighting Color - The cordless table lamps have 3 lighting colours,cold white/natural/warm white. let you fine-tune the atmosphere of a room in more ways than one. They give you additional light where you need it while also adding a bit of personality. Dimmer Function - You can adjust the brightness with the built-in dimmer,just put your finger on the switch over 3 seconds ,brightness will get low.Changing the brightness according different occasion that makes your home feel cozy and inviting. 8-6Hours lightling - The cordless table lamps come with half powered,when you get them please charge at least 3 hours,then they can lighting up to 8 hours. Designed with black rubber at the base that prevent scratching furniture and table tops, as well as sliding around.