These LED headlamp flashlights (2 pack) are USB rechargeable and have eight light modes. They are also light weight and comfortable to wear while you are trying to work, and because they are on your head they shine where you are looking! Take these with you when you go on a trip, for emergency use with the red light or the flashing mode, or for use when you are camping. They are bright and since they are rechargeable you don't ever run out of batteries as long as you have a power source that takes a USB cord. I love these head lamps because they are so versatile and economical!