4. Outdoor: The battery box is , suitable for outdoor use. 2. Simple and light solar replacement light box.decorate your beautiful outside garden and terrace. 3. Replacement: Solar light replacement top is suitable for solar light. 1. Please turn on the ON button on bottom before charging by the sun or good daylight.NOT suitable for storms and extreme weather. 5. Working Time: The charging time is 6-8 hours, and the working time is more than 8 hours.