The Solar Powered Patio Umbrella ($200) provides shade during the day and light at night. During the day, when the sun is beating down, a solar panel on top of the umbrella collects the sunlight as power. At dusk, 24 LED lights embedded in the umbrella's canopy and spreaders automatically illuminate for up to 8 hours. If you prefer natural light from the moon and stars, there is also an Auto/On/Off switch built-in. (via The Green Head)

my new addition to my house in pasadena. its really useful. hefty price but great

This is so cool. Collect solar power as you use the umbrella to shade, and in the evening, bask in the glow of 24 LED lights...or turn them off if you want to enjoy the night sky.

Now THIS is a great idea. My dad usually winds Christmas lights through the umbrella so that we can see at night-time, but then you can't close the umbrella and it wastes energy. The solar powered umbrella is brilliant. Sun charges the lights all day, and when the sun goes down the lights come on automatically to light up the table, backyard, and mood!