Feature:1. LED digital display, clear and convenient to view the data.2. High accurate potentiometer is used for voltage regulation, real time voltage regulation is under control.3. High temperature retardant without deformation, metal material, rust-proof, effectively prevents high temperature and oxidation and rust.4. 0 lag, 0 delay, with peakvoltage absorption circuit effectively protect high power Thyristor antisurge, antipeak, RCabsorption multiple protections.5. With side holes for quick heat dissipation. Safer in use.Specification:Specifications:Color: blackMaterial: metalMaximum load: 5000W (suitable for 2000W-2200W resistive load 2200W-2500W)Long term load: inductive load 2000W-2200W resistive load 2200W-2500WRated current: 11AMaximum current: 22AItem size: 115 * 100 * 85mm / 4.5 * 3.9 * 3.3inCable length: 0.8mItem weight: 471g / 1.0lbPackage size: 175 * 115 * 95mm / 6.9 * 4.5 * 3.7inPackage weight: 530g / 1.2lb.Package List:1 * Voltage Regulator1 * User Manual