These lights can be charged with the sun (they are solar) but they also come with a USB cord, so that you can charge them up via your computer too. That's great if you have a super cloudy day and need to charge them up for later use.
Disclosure: Shelly H. was given complimentary product samples to feature in this review. No monetary compensation was received. Regardless of receiving samples, her thoughts, words and opinions are 100% her own and unbiased. Your thoughts may differ.