Delcast 30W Soldering Iron & Tool Kit, Includes 25g Rosin Core Solder (5 Piece Set) This five piece soldering iron kit includes a 30 watt precision tip soldering iron, soldering iron stand, 25g rosin core 63/37 tin lead solder and a metal solder assist tool. Delcast SP-30JY Pencil Tip Soldering Iron is ideal for electronics soldering. The low wattage allows for the soldering of heat sensitive PCB which can be damaged by too high of wattage. It has a comfortable handle, polarized US power plug and replaceable pencil shaped soldering tip. Includes one 12.5g tube each of 0.6mm and 0.8mm rosin core 63/37 tin lead solder wire. Solder is comprised of a eutectic ratio of 63% tin to 37% lead, meaning it has the lowest melting point of any other tin to lead mixtures and a lower melting point than either of the two parts by themselves. It has a true melting point of 183 Celsius / 361.4 Fahrenheit.