Acebeam H30 6500k 4000 Lumen USB-C Rechargeable Headlamp Red + CRI90 LEDsH30 is the brightest LED headlamp on the market driven by a single 21700 battery. Suitable for mining, exploration and outdoor search, the secondary LED options of Red+Green, Red+UV, and Red+ CRI are available to enrich your application scenarios. Red LED preserves your night vision; UV for police and crime scene investigators; CRI light has the ability to present the original color of the light source to achieve better lighting effects. LED 3: 1 x