Lofree's Usb Cob Led strip lights bring clean, flexible illumination to shelves, workspaces, and creative projects, with 10 brightness levels, smooth step-less dimming, and a memory function that brings back your last setting. Powered through any 5V/2A+ Usb port, this dotless strip delivers steady light and even coverage that makes details easier to see, from Diy bias lighting to under-cabinet tasks.