Feature:1. Adjustable Vertical Beam: The LED Chest Light features a 90 adjustable angle, allowing runners to customize the beam direction according to the terrain, ensuring optimal visibility.2. 8 Rear Red Lights: With 8 red lights at the back, this chest light helps enhance visibility in dark environments, making it easier for others to see you and providing all around protection.3. IP55 Waterproof: Designed for outdoor activities, this LED Chest Light is waterproof, making it suitable for night running, walking, jogging, camping, hiking, and fishing, even in wet conditions.4. Adjustable Strap: This chest light is incredibly lightweight and comes with a flexible strap that can be easily adjusted for a comfortable fit, catering to individuals of different sizes.5. Reflective Strip: Equipped with a reflective strip, this LED Chest Light improves safety by making you more noticeable and reducing the chances of collisions when running at night.Specification:Item Type: Outdoor Night Running LightsMaterial: ABSLight Source: XPG+COBLuminous Flux: 500lmWaterproof Level: IP55Battery Life: 2/4-12 hours [Main light: 2 hours]Power: 5WSwitch Mode: Main light - 3 modes, Auxiliary light - 2 modesLighting Range: 5-20 metersLighting Mode: Focus or Flood - Dual light typeVoltage: 5VCharging Time: 3-4 hoursBattery: 18650 lithium battery 1200mAh (built in).Package List:1 xLED Chest Light1 x USB Cable