Synergy 21 LED Flex Strip COB Series High Performance For greater stability and heat dissipation, there is a copper tape on the back. Voltage: 24V, Power: 15W/m, total 75W. Light color: super warm white, 2700K, CRI 90. Brightness: 98 Lm/W or 1480 Lm/m, total: 7400 Lm. Beam angle: 120°. Protection class: IP20. Number of LEDs: 480 LEDs/m, Total: 2400 LEDs. LED type: COB. Cutting size: 50 mm. LED Strip dimensions: 5000 x 10 x 2.5 mm. Working temperature: -25 °C to +40 °C. Adhesive tape: yes, 3M on the back. Please make sure that the LED Strip does not exceed the working temperature of 40 °C, otherwise the lifespan cannot be guaranteed. No warranty is provided on overheated LED Strips.