1. 99 adjustable power levels, with real-time display of gear levels on digital tubes 2. Real time voltage monitoring protection, if the voltage is not within the range of 8-17v, display ue 3. Real time mos tube temperature protection. If the mos tube temperature exceeds 45 ℃, ce will be displayed 4. Using 5 mos transistors, the peak current of spot welding can reach 1500a 5. 10awg wire, aluminum oxide copper spot welding needle, ensuring high current carrying capacity and durability<br><br>6. Pure copper conducts electricity and heat, improving spot welding efficiency Parameters: Product model: a99 Working voltage: 12v Working current: 100-300a Standby power consumption: Less than 0.5ma Welding nickel plate thickness: 0.1-0.3mm (related to battery rate) Welding peak current: 1500a max Voltage requirement: 25ah-60ah or 30c or higher high rate battery Colour:As Shown Material:plastic<br><br>Package Contents: 1 * moudle<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.