Aerocool Lighting, Fan, 4.72" (12 cm), 1200 RPM, Black, Blue Aerocool Lighting. Type: Fan, Fan diameter: 4.72" (12 cm), Rotational speed (max): 1200 RPM, Maximum air pressure: 1.32 mmH2O. Voltage: 6 - 12 V. Width: 4.72" (120 mm), Depth: 0.984" (25 mm), Height: 4.72" (120 mm). Product color: Black, Blue