Halo Go is a truly portable magnifying lamp that comes with a USB rechargeable battery. The LEDs circle the magnification lens for a uniform lighting over your project, and the brightness remains consistent for 8 hours. Ideal for stitching, embroidery, jewellery-making, art nails, reading, and more. Key features: Rechargeable battery 4 hours of light on full brightness, the brightness remains consistent for the full 4 hours 8 hours of light on second setting, the brightness remains consistent for the full 8 hours 2 brightness levels Battery level indicator 6 hours for full recharge Compact design Folds completely flat 9 cm (3.5 in) diameter lens 5 dioptres magnification lens (2.25X) 12 dioptres magnification inset lens Technical details : Light source: LED Lumens: 315 Lux at 15 cm: 4,000 2 steps touch dimmer: 4,000 – 2,000 Colour temperature: 6,000 K CRI: 80+ Energy consumption: 5W Colour: white / silver LED rated life (hours): 50,000 Lens diameter: 9 cm (3.5 in) Magnification: 5 dioptres (2.25X) Inset magnification: 12 dioptres (4X) Maximum reach: 36 cm (14 in) Height: 33 cm (13 in) Width: 15 cm (5.9 in) Depth: 15 cm (5.9 in) Weight: 0.75 kg (1.65 lb) Cable length: 1.5 m (59.1 in)