Product Features: . Power Source: Corded Electric. Type: Welding & Soldering Machines. Model Number: TQ-77 Voltage: 220-240V AC 50/60Hz. Insulation Resistance: Over 100MŒ (500V DC). Heater: Ceramic Heater. Power Cord Length: 1.5m. Length: 167mm. Weight: 90g. Accessories: Soldering Iron Tip (TQ-77RT-B).