Rechargeable Battery-Powered Wooden Lamp for the Bedroom Rechargeable Wooden Lamp with Wood Knob Dimmer and Vintage Edison Bulb. Designed for wood connoisseurs! We exclusively utilize recycled wood, ensuring no trees are harmed during the manufacture of this product. Each lamp is hand-polished and the surface is sealed with wood wax oil for a natural and comfortable look. We only use FSC certified wood which is sourced from forests that are responsibly managed in the most environmentally sustainable way possible. Charging Method: USB-Type c charging (Red light shows when charging, green light shows when fully charged). Fully charged in 3 hours LED Bulb: 5V, dimmable 4 Watt (40 watt equivalent), warm light bulb (approx. 2700K), lifespan lasts over 30,000 hours Battery: 3.7V Li-Ion 2500mAh batteries Battery Life: Autonomy 5 to 20 hours depending on chosen intensity. lifetime 750+ charge-discharge cycles Touch Dimming: 5%-100% Item Weight: Approx. 1.6 pounds (0.75 kg) Size:W7.6" (19.5cm) D4.9" (12.5cm) H7.8" (20cm) (Including the height of the bulb) Material: Walnut Wood