This is the first battery-powered lamp that puts the bulb front and centre. On average, a full charge produces up to 100 hours of light. Charge the lamp via cable, wirelessly on any Qi-standard charger, or on the matching 10W bamboo humble dock. The humble bulbs glow like the old-school incandescent type, but are actually made out of lots of tiny LEDs. That means they're ultra-energy-efficient, and perfectly powered by the integrated battery pack. By pressing the button on the bottom, you can change the bulb's brightness to (1) candle, (2) ambient or (3) work.