XLUX K10 Rechargeable Patio Outdoor Umbrella Light Tent Lamp, with Batteries and Charger, White Light 24 long life LEDs provide 6-8 hours even, bright and natural-like light from four spot bases after fully charged(3 hours). Ideal for evening BBQs and patio parties that go late into the night. Self-adjusting clamps can fit almost all umbrellas and parasols that is 1.375- to 2-inch in diameter. An extra pair of grips fit for even slim pole. The quick-release button allows easy mounting and removal. No tools required. Operate on 4 AA rechargeable batteries, so your umbrella will be tidy with no unsightly wires hanging around. CE, ROHS and UL approved charger, safety to use.