Solar tube light solar tube light energy-saving solution is ideal for power failures. This versatile portable solar led tube light can be very useful during your camp, beach, backyard, or even your house during a power outage. The light is also ideal for camping, reading, in-car use, emergencies and more. It features a built-in long-life rechargeable lithium-ion battery, which can be also be charged using an included Nokia mobile charger as well as with the included solar panel or even from a power bank Belifals solar tube light will last for years and provide bright natural light for your indoor or outdoor activity. User manual kindly fully charge it one before using for 1st time place the solar panel in direct sunlight during monsoon, charge with electric charger if there is no direct sunlight when charger is connected the LEDs will glow very dim indicating charging the light gets fully charged in 6hrs of electric charging & 2 days of solar charging. Overcharging battery cut off function included. All products purchased have a 120-day carry in warranty as standard. The carry-in warranty period begins on the day the product is actually provided. The warranty covers all of the items and conditions identified in the actual manufacturer’s warranty. Some of the items specifically not covered by the warranty are loss and theft, water damage, consumer abuse. No exchange are accepted and consumer bears the amount for sending back the product in case of repairs or faulty condition.