Attentions: 1. Strong acidic flux is avoided for welding. 2. In use, iron can not be knocked and black oxide in the head. 3. Thermo elements andiron head are strictly prohibited to be demolished or replaced when iron is in electricity. 4. It is normal for heating elements to have a slight fever with smoke after the first electricity, they'll disappear after 10 minutes. 5. The configured iron base and welding materials should be grounded reliably. 6. Power wires and heating core should be replaced by full-time staff when they do not work well. Specifications: Material: metal, rubber Heating Element Type: A1322 Type: 5 Hole Power: 50W Voltage: DC 24V Replacement handle: for 936 937 898D Length: approx. 19cm / 7.48inch Weight: approx. 83g Package Included:1 * Soldering Iron Usage: 1. Welding can be carried out 2 minutes after the electricity 2. Can be used at welding temperature. 3. Unplug the power if not used for long time to extend life of the heater and iron head. 4. Tin should be kept on iron head in use and after use.