1. Small LED flashlight with pocket clip, compact enough to fit in your pocket, compact enough to fit in your pocket, backpack
2. USB charged flashlight, only need 3hours get a full charged via any USB port, power supply by laptop, power bank, car charger etc.
3. 18650 flashlight, use overcharge protection, the flashlight will stop charging when it fully charged,so that you don't need worry about the safety issues when you forget the flashlight is in charging.
4. Super bright SST40 led bulb, coming with more than 1500 lumen brightness, easily light up the whole room or the distance 600 feet away.