Gel II 7D - Cordless Rechargeable Lamp The Gel II 7D CORDLESS RECHARGEABLE LED Lamp is designed for authentic professional manicurists. The new sleek and stylish Gel II 7D Diamond Edition UV/LED Cordless Lamp has a look nail techs will love. The lamp comes with a sparkly, acetone-resistant diamond-effect finish. Features include premium Japanese components, an LG battery, and 36W bulb. Its charge lasts up to 10 hours, curing 99% of gel-polish brands on the market. This lamp is our most powerful and quickest yet. The 7D comes with 3 timer settings. Set it and forget it, motion sensors activate when hand is placed inside.