Solar charging helps you save on electricity bills. Solar hanging lights outdoors create a soft glow and romantic ambience, bringing your porch to life. Each solar outdoor string light is 34 feet/10.36M in length, has 15 bulbs, E26 base hanging sockets, and 2 feet /0.6M spacing between bulbs. Each LED bulb is 30 Lumens, the whole string is 450 lumen. Bulbs remain cool surface after long hours of usage, with no overheating worries. Solar-powered string lights are equipped with 180° adjustable solar panels and inbuilt high capacity 3.7v 1800mAh rechargeable batteries. Powered by solar energy, the solar patio lights will charge during the day and light up automatically at night, working up to 8 hours after fully charged. You can also use a micro-USB plug to charge them indoors or in bad weather.