size:Φ160xH50mm;inner hole:Φ35-50mm;material:ABS;casing colour :white; wattage:3W;AC Adapter:4.8V with a charger (4pcs storage batteries); Advantage:Self-adjusting clamps can fit any sized pole of market umbrella from dia 20MM to 48MM, and can be opened, installed and locked onto the pole easily. Twenty-four long life LEDS provides even, soft and nature-like light from four spot bases,The life span of our super bright LED is about 100000 hours.