Vktech Black Brushless DC Cooling Blower Fan 2 Wires 5015S 12V 0.06A 50x15mm Brushless DC Blower Fan Ultra quiet MID speed brushless DC Blower Blade Material is thermoplastic UL94V-0 PBT Operating Temperature: -10 Celsius degree to +60 Celsius degree Life Expectancy at 40 Celsius degree: 40000 hours