500VA Adjustable Voltage Transformer, 110V Input 0-130V Output AC Voltage Regulator Stabilizer, Stepless Variable Power Converter for Household Industrial Laboratory Equipment Voltage Testing
✅ STEPLESS 0-130V VOLTAGE & PURE SINE WAVE – Features 110V/60Hz AC input and 0-130V stepless adjustable AC output. Unlike ordinary electronic controllers that distort waveforms and cause buzzing, this contact variable transformer outputs smooth, distortion-free sine wave power with zero hum and interference for quiet and stable power supply.
✅ FULL SAFETY PROTECTION & USER-FRIENDLY DESIGN – Built with over-voltage and overload protection plus a replaceable 5A fuse to prevent circuit damage and device burnout. Equipped with a lighted on/off switch, real-time output voltmeter and US standard power cord, the enclosed structure supports safe and intuitive operation for daily and professional use.
✅ PURE COPPER COIL & PREMIUM DURABILITY – Adopts high-quality pure copper coil and eco-friendly materials to ensure high power efficiency and oxidation resistance. Odorless and noise-free, this sturdy transformer supports long-hour continuous operation and meets professional testing and industrial usage standards for long service life.
✅ MULTI-PURPOSE WIDE COMPATIBILITY – Works perfectly for household, laboratory, industrial and creative scenarios, including guitar amp brown sound tuning, Lichtenberg wood burning, home coffee roasting, motor speed control, label printing machines, EE lab tests, railroad switching tests, and telecommunication & power equipment debugging.
✅ 500VA POWER RATING & SURGE RESISTANCE – Rated 500VA with a maximum 5A stable current at 100V. It effectively handles instantaneous startup surge of inductive devices such as motors, avoiding overload risks to ensure safe, stable and reliable long-term operation.