The Raychem Mini-Ray MK4 tool from TE is a hand held infrared heating tool designed for use in installing SolderSleeve termination products. The tool is portable, lightweight and convenient for use where workspace is restricted. The hand tool is fan cooled and has low heat emission as the lamp is only energized on demand. A duty cycle up to 50% is permissible with a maximum heating time of 50 seconds.