1、HEAT RESISTANT: Pure copper core transformer, high temperature resistance is more stable, can work in high temperature environment for a long time. 2、FULL PROTECTION: The inverter is equipped with 12 layers of intelligent safety protection to ensure the safety of using the inverter. 3、STABLE PERFORMANCE: Black gold capacitor inverter instantaneous discharge more powerful, heat sink to increase the inverter effect, voltage regulation more stable. 4、ALUMINUM ALLOY SHELL: This intelligent transformer's aluminum alloy shell wear resistant hardness, not easy to rust corrosion, long service life. 5、WIDE APPLICATION: This inverter has 20 effect field tubes and is widely used for 12V 45A or more batteries with strong power. 1 x Dual Variable Inverter1 x Manual Switch Item Type: Dual Variable InverterMaterial: Aluminum alloy, pure copperModel: 99900wInput Voltage: DC12VPower Field Tube: 20 tubesThyristor: 2PcsCurrent: 70AGear: Variable Frequency High LowSafety Protection: 12 fold intelligent safety protectionField Effect Tube: 20 effect field tubeBattery Requirements: 12V 45A above the effect is better