Universal Fan 12 cm 1700 RPM 29.7 dB 60.6 cfm 2.65 mmH2O 120 x 25.4 x 120 mm 157.1 g Black 3 pc(s) CRONA X. More than just Convention Dazzling lighting is MadeWith the removal of the square frame, there's nothing blocking Crona's RGB LEDs.A perfect non obstructed 3 dimensional halo is viewable from both the front and side.The Crona 120 features not only the great design but also strong effect.Splendid RGB lightingThe Crona 120 breaks away from the conventional square fan design to elevate its lighting elements. By removing the square frame, Crona creates a strong 3 dimensional lighting structure. Conventional Design makes Crona 120 a real Eye-OpenerImplicit RGB lightingCrona S, designed for users that want to own the RGB lighting without suffering from light pollution. By placing LED lighting in the middle of black frames, Crona S would be the best choice for reserved people like you.Controller on Hand, Lighting is PlannedWith the included Crona Controller and Remote, the Crona suppor