Specifications Item Model Number: BT-BPT280BS Power: 50W Material: Cold-Rolled Steel Airflow: 80 / 110 / 130CFM Pipe Diameter: 4 inch / 101.6 mm Color Temperature: 3000K / 4000K / 5000K Noise Level: 1.5 sones / 60dB Net Weight: 5.51 lbs / 2.5 kg Item Dimensions: 11.81 x 10.04 x 6.89 inch / 300 x 255 x 175 mm Package Content 1 x Bathroom Exhaust Fan 1 x User Manual 4 x Large Flat Self-Tapping Screws 1 x Remote Control