Vktech Brushless DC Cooling Blower Fan Sleeve-bearing 7525S 12V 0.18A 75x33mm Ultra quiet MID speed brushless DC Blower Blade Material is thermoplastic UL94V-0 PBT Housing Material is thermoplastic UL PBT Operating Temperature: -10 Celsius degree to +60 Celsius degree Life Expectancy at 40 Celsius degree: 40000 hours