Strong enough for most plumbing, HVAC, large cable work, battery terminals, motor leads and stator applications. Sweat solder thin-wall copper tubing up to 1-1/2" diameter. Components: 105C2 - 1,800 Watt Resistance Soldering Power Unit 10587 - Heavy-Duty High-Heat Carbon Pliers Handpiece 10519HW - High Wattage Foot Switch Specifications: Three tap selectable power outputs of 500, 1300 and 1800W. (2.3 to 7.2VAC) 220V. Durable, User-friendly hand piece with ten foot (3.1m) 6 AWG high-strand DLO cable. Hand piece connects to power unit with 3/8" ring terminal & stud/wing nut system to accommodate higher output range. Rugged, industrial Footswitch with 6 foot (1.83m), three-wire cord and NEMA 5-15 P/R piggyback plug.