Features:

• 23.0 ' LED String Lights - Easy to install - No energy cost
• Comes Prelit with 50 Multicolor Solar-Powered with Rechargeable Battery Lights
• Features Up to 88% Less Energy Use than Standard Bulbs, LED Technology for Vivid Colors and Whiter Whites
• Don't let high electricity costs keep you from showing your lights in spirit. These solar powered LED lights run off the sun's energy then turn themselves on at dusk and off when the sun rises.
• String remains lit even if one bulb goes out

Editor Reviews:

Product Description:
Get Solar String Lights by New Ray you'll receive a 50 strand string light set that uses White LED bulbs which last 10,000 hours or more and will light up your outdoor setting for up to 8 hours. The NewRay mini light set is 23 feet long, from the solar panel to the first bulb there is 72 inches, there are 4 inches from bulb to bulb. There are two settings available for our solar LED string lights, solid on and flashing / twinkle.Don't let high electricity costs keep you from showing your lights in spirit. These solar powered LED lights run off the sun's energy then turn themselves on at dusk and off when the sun rises.

Rating : - 7 DAYS AND 7 NIGHTS
Awesome
This is the best solar light ever.
I bought this light to use in my yard but when I received it and see that is works with a rechargeable AA battery I had to experiment and it WORKS.
I put the light in my house and I cut a piece of cardboard and paste it over the face of the unit so it won't charge the battery.
I put in a regular AA Duracell battery and put it to flash mode and it FLASH FOR 7 DAYS AND 7 NIGHTS before the battery went dead. Believe it I was amaze. So I am using it indoor and replace one AA battery every week. What more than that could you ask for. No electricity and my lights work perfectly.
If you cover the solar panel and leave the small glass like bump open and you have enough sunlight in your home then it will turn off during the day and on in the night. The battery will last double the time.

Make sure if you buy its the one with the Changeable AA battery.