If you want to add some atmosphere to your outdoor seating area, then a patio umbrella light would be a great idea. Ace Hardware is one store that carries a couple of good solutions by Westinghouse such as umbrella string lights as well as LED patio umbrella lights which provides more direct light. The string lights on the other hand provide more atmosphere and a subtle light which would really make your outdoor living area cozy and comfortable at night. So no matter what type of outdoor garden products you're looking for, Ace Hardware is worth a visit. At Ace Hardware you can find outdoor furniture, lighting, lawn decor, and garden tools among other products for reasonable prices.
"72 mini lights. 8" "spoke" design fits most standard patio umbrellas. Quick and easy one-time installation. Includes all mounting hardware. Umbrella can be closed & stored w/out removing light set. Outdoor/indoor. UL approved"
Westinghouse LED Patio Umbrella Light
"Fits on 1-1/3" to 1-2/3" pole diameter. Provides soft ambient light and perfect for patio, camping trips & many other outdoor applications. Uses four "AA" 1.5V batteries"
These lights can be found at acehardware.com