The weller wps18mp high performance soldering iron heats up and recovers three times faster than a standard homehobbyist soldering iron the 18 watt iron heats from room temperature to 480 deg c in just 35 seconds and delivers performance equivalent to a typical 60watt iron a red led power on indicator turns green when the iron is up to temperature with another white led shining right on the work place replacement soldering tips incorporate a modular plug for easy exchange