How to use: This solar light requires a long press of the switch for 3 seconds to turn the light on and off. The first mode is automatic color changing. Short press the switch for 1 second to activate the fixed color function. 4th Generation Solar Light: T-SUN ultra bright 7 LED solar light, waterproof (IP55), new 320 lumens output. Built-in lithium battery (2200mAh). 2 Modes - 1 mode is on/off and automatically changes random colors (red, green, blue, orange, blue-green, purple, yellow) and 2 modes are the color you like. There is a waterproof protective cover for the on/off switch on the back of the light and you can press the side to choose the mode you want. Full Adjustable Range: 180° adjustable for the solar panel, 90° adjustable for the lamp head. No need to worry about sunrise and sunset, perfect for optimal sunshine. Auto On/Off: Auto at night/Car at sunrise; Random color mode will last >10 hours, while single color lighting mode will work for 8-10 hours after fully charged.