It uesd for replacement. It used for yihua936/YH936B/YH937D/YH8786D/YH898D/YH878/YH878A/YH878D /YH878AD/YH898BD/YH872D/YH852 Series /YH862D. Soldering stations of other brands or models are may not necessarily suitable, E.G.If appear over heats and started to burn up,It shows that the quality of the soldering iron itself is no problem, but it is not applicable to the soldering station. Output Temperature: 200-450℃ Output Power:50W Model Number:907A