be quiet! Light Wings PWM, 140mm IMPRESSIVE LIGHTING, SUPERIOR COOLING Light Wings 140 mm PWM offers impressive illumination for a unique appearance, high performance and quiet operation for rapid and efficient cooling. ARGB lighting on front and rear Multiple colours and effects for customised lighting thanks to 20 ARGB LEDs Lighting can be synchronised with the ARGB settings of the motherboard Seven noise-optimised fan blades provide high airflow and reduce noise-generating turbulence Very quiet operation at max. 23.3 dB(A) Long-life rifle bearing for an operating life of 60,000 hours Speed controlled via the mainboard thanks to pulse-width modulation (PWM) German product concept, design and quality control Looking for a silent case fan that looks impressive from any angle? Light Wings 140 mm PWM is the ideal fan for you.