The InnoGear headlamp solves that problem. It does that with:
- Super bright LED with a maximum output of 5000 lumen
- Two rechargeable (4400mAh) batteries
- Four modes: high/middle/low/flashing
- USB cable to use as an emergency power bank to charge a phone or other device
- 90-degree rotation
- Waterproof and heatproof
- Up to 6 hours working time under full charge
- Made of lightweight aluminum alloy and rubber
It comes with a wall charger, USB cable and two 18650 batteries.