Slim 12 UV Blue (FN-FW12SlimB-15)Silent Slim 120mm UV Reactive FanThe Slim 12 UV Blue features a unique Hydro Dynamic Bearing. This bearing ensures silent operation and ensures long lifetime. The optimized fan blades generate high air flow and the impeller is UV reactive. The Slim 12 UV Blue has a start voltage of only 5 volts and a 5-year supplier warranty.