Feature: 1. HIGH ILLUMINATION WORK AREA (LED): The induction heater has the integrated LED light attached at the end, illuminating the work space even when working in the dark. Make it easier to understand how things are going and how the hot object is doing. 2. WITH COOLING SYSTEM: The flameless heater kit for cars has a cooling system and overheating prevention, which warms without harming neighboring thermal sensors and increases the equipment's lifespan. The improved thermally stable thermoplastic shell increases shell durability on the inside and outside. 3. 3.0MM BRASS CORE: A 3.0mm brass core make up the induction heater kit, making it more dependable than coils 2.5mm brass cores already on the market. It is not frightened of high temperature testing and can be heated to a high temperature of 800 ℃ for a very long time. The power savings can arrive over 30% when compared with the electric heating coils now available on the market. 4. WIDELY USED: Electromagnetic induction heaters are mainly used to heat nuts and rusty screws to loosen them. Also be used for heat treatment of automobiles, machinery, and various small metal parts such as gears, pulleys, bearings, etc. 5. 4 COILS: There are 4 coils in the package, including 1 x 0.79in (20mm), 1 x 0.98in (25mm), 1 x 1.18in (30mm), 1 x 29.53in (750mm). Use at will! Specification: Item Type: Rusty Screw Nut Induction Heater Mode: FH 1500B Material: Flame Retardant ABS, Brass, Aluminum Alloy Power Saving Effect: Power saving can arrive over 30% Working Frequency: 50-60Hz Rated Power: 1500W Heating Temperature: 800 ℃ Time Required for Heating at 800 ℃: 5 to 30 seconds (the larger the object, the longer the time required) Heating Bolt Diameter: The coil can be covered and adjusted freely Environmental Temperature: -40 ℃ to 60 ℃ Relative Humidity: Less than 95% RH Atmospheric Pressure: 86KPa to 100KPa Function: 1. Equipped with soft start function, long service life in case of frequent starts. 2. Equipped with IGBT overcurrent protection function. 3. Equipped with input and output overcurrent protection automatic adjustment negative feedback function. 4. Equipped with IGBT over temperature protection function. 5. Equipped with heating coil short circuit protection function. 6. Equipped with heating coil open circuit protection function. 7. Full bridge series resonant circuit topology with strong anti interference ability. 8. Using high performance IGBT driver chips for accurate driving and output waveforms. 9. Automatic identification of load and phase locked function to achieve high power factor at the load end, and to enable circuit control to work efficiently in weak inductive areas. 10. Several electromagnetic heating controllers are installed in parallel on the same heating tube without interfering with each other. 11. Power Saving Effect: Compared with the currently used electric heating coils, the power saving can arrive over 30%. 12. Easy Installation: can be connected to induction coils with bucket and flat plate structures, etc. 4 Coil: 1 x 0.79in (20mm), 1 x 0.98in (25mm), 1 x 1.18in (30mm), 1 x 29.53in (750mm). Package List: 1 x Induction Heater 4 x Heating Coil 2 x Screw 1 x Storage Box 1 x Manual