This is a replacement power connector for the Creality Falcon2 Pro Laser Exhaust Fan. This Power Connector is the OEM replacement for the Creality Falcon2 Pro. The red and black wire leads are 7 inches in length. You will need to splice the wires to whatever fan you intend to use for your laser exhaust system and there is a good chance you will need to extend the wire leads to be long enough to serve that purpose, but this replacement will give you a brand new connector for that endeavor.