Features: Night running Lights contains 4 LED bulbs, enough to illuminates the surrounding environment and make your night activity safe. With clip designs, it can easily clipped on hat, collars, bag, dog collars. Can charges usings USB, convenient and fast, and is suitable for most USB charges devices. It take about 2 hour to fully charge. Suitable for night hiking, running, camping, dog walking, exploring, etc. Compacts and Light Weight, easy to carry, can clipped on the head or other items for lighting, suitable for outdoor activity or night use. Specifications: Materials: Plastic Power: 1W Battery capacity: 200mAh Charging voltages/current: 5V/200mA Size: about 4x6.50cm/1.57x2.56inch Package Includes: 1pc Running Lights note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.