The be quiet! Light Wings 120mm PWM is a cooling fan designed to balance silent operation with a subtle visual accent. It features ARGB LED rings on both the front and rear, powered by 18 LEDs that connect via a 5V 3-pin header, allowing you to integrate the lighting into your system's overall theme. To keep cable management tidy, these fans are daisy-chain compatible, meaning you can link multiple units together before connecting them to the motherboard. Performance is handled by a 4-pole motor and a rifle bearing, which together ensure a lifespan of 60,000 hours. At full speed, the fan reaches 1700 rpm, moving 41.5 CFM of air with a static pressure of 1.66 mm H2O, while maintaining a noise level of 20.6 dB(A). The 120 x 120 x 25 mm black frame is secured with the four included screws, making it a reliable choice for users who want a quiet, illuminated cooling solution for their PC case.