1Made of high quality polysilicon, sturdy and durable for long term use. 2With high efficient conversion rate, energy-saving and practical, long service life. 3Has excellent waterproof performance, suitable for any extreme weather conditions. 4Exquisite workmanship and small size, easy to carry, it can be charged quickly under sun light. 5Suitable for all kinds of low-power appliances, such as emergency lights, advertising lights, traffic lights, etc.