I purchased solar torch 1.5 years ago and been using it almost every day. It has a very good performance. It has inbuilt solar panel. It takes 6 to 7 hours to get full charge. It has 2 modes flash mode and reading mode. it works for 1:30 - 2 Hours with flash mode and upto 4 hours with reading mode. Another great feature is that it is also chargeable by USB in rainy days.