This product has two modes, the sensing mode and the constant lighting mode. In the sensing mode, the lamp will not light during the day, and when the light is dark, the person will be illuminated, the sensing distance is 1-4 meters, and the lamp will automatically turn off after leaving for 15 seconds. Specifications: Light color: warm white, white (optional) Item color: white, black (optional) Material: ABS LED source: 2835 LED Power: 1W Battery: 3.7V, 1800mAh Color temperature: 6000K white, 3000K warm white Item size: 195 * 44 * 20mm / 7.7 * 1.7 * 0.8in Item weight: 100g / 3.5ounce Package size: 210 * 50 * 45mm / 8.3 * 2.0 * 1.8in Package weight: 200g / 7.1ounce Package list: 1 * Lamp 1 * USB Cable 1 * Bracket 1 * User Manual