20 Retro-Style Solar Camping String Lights, Perfect for Campsites. Retro Solar Lights - 20 Bulbs Uses only one AAA battery. All other power is charged from sunlight. There are two patterns: steady-on and flashing. If charged, they might be stylish for indoor use as well. The body isn't completely black; it has a discolored paint job, but it was like this from the beginning. It seems to be a paint job to create a retro feel. Although it's a new, unused item, I opened it and took it out of the bag to test the lights. (See photo 6) Please be aware of this. Includes instruction manual. - Type: Solar Camping String Lights - Number of LEDs: 20 - Function: Automatic lighting - Design: Retro style - Usage: Campsite decoration