This light pairs nicely with your patio umbrella and sheds some light on your guests while entertaining. It is ideal for market-style umbrellas. Details: Black 2.5" x 8" diameter Light has 4 panels that contain 20 long lasting LEDs Non-replaceable bulbs Convenient on/off switch on the side Requires 3 AA batteries (not included) Easy to install Features an automatic clamp to lock onto umbrella poles sized from 1.25" to 2" in diameter