4 Years Warranty, patent LED Tube Light Category: LED Tube, LED Tube Light, LED Tube Lamp, T10 LED Tube, LED Fluorescent Light, LED Tube T10, LED Fluorescent Tube, 1. LED Tube Power supply without electrolytic capacitor, patented, the only one power supply that matches LED's long lifespan, >50000hrs 2. Isolated driver, reach international security standard 3. LED Tube Light with Unique Design: Self-design, Self-molded, self R&D Center 4. Heat dissipation structure: Temperature rise: 76 Working Temperature -2040 Environment Humidity