Solar Power Bank DIY Kit, 20000mAh Portable Charger Assembling Kit for Cell Phone Tablets Camping, Dual USB External Backup Battery with LED Flashlight Emergency(Black)

【High Quality Solar Charger Power Bank】Solar charger is Built-in single crystal solar panel, ensures fast speed conversion rate of solar to electric. Power saving, after fully charging for your devices, this power bank will automatically stop power output and enter the low-power state. 【Solar Charger】Solar power banks can effectively convert solar energy into electric energy and store in battery for all-day use. Over-charge, over-current, and short circuit protection, safe and environmentally friendly, fully protects your devices. Perfect for sport, travel, and other outdoor activities. 【High Capacity Solar Power Charger】This mobile power bank is Built-in 20000mAh large capacity, you can easily charge for your phone anytime and anywhere without worrying about running out of power. Safe for charging, fully protect your phone from overcharge, over-temperature, over-pressure, overload, and short circuit. 【Fast & Smart Charging】This powerbank Provides dual USB ports, you can easily charge for two devices at the same time, or share this backup power with your families or friends. Wide Compatibility, fully applicable to most kinds of smart phones, tablets, camera and other digital products power supply by DC 5V. 【Guarantee】24 hours online service, if the product that you received has any problem, please contact us anytime, and we will provide you timely, honest and efficient service.