Honoring the legacy of Poul Henningsen, the PH 1/1 Portable Table Lamp is based on the iconic three-shade system, the System PH, invented by Poul Henningsen in 1926. Crafted of glass and aluminum Uses one integrated LED bulb; dimmable Light switch on base Rechargeable (USB-C cord included) Light indicator on base when charging Overall, approx. 6. 3"Dia. x 11. 4"T Lampshade: 6. 3"Dia. Battery life: 5 hours Wipe clean Weight, 1. 8 lbs Imported Boxed weight, approximately 3. 8 lbs