The C210 cartridges are appropriate for precision soldering jobs with medium power requirements. Due to the size, these cartridges are perfect to work with SMD, under a microscope, or with conventional components. They work with T210 precision handpieces. JBC long life tips offer instant heat up, excellent heat transfer and great durability. They last 5 times longer than other brands thanks to JBC most efficient soldering system and the sleep?and?hibernation features.