Features: This is a high-performance intelligent electronic load that can perform constant discharging test. It supports over voltage protection, over power protection and over temperature protection. Intelligent temperature control fan + all aluminum fan for better heat dissipation. Hydraulic bearing intelligent temperature control fan, speed 8000±10%RPM. Application for charger, power supply and other device manufacturers want long-term discharge or batch aging test of products. Assist to measure Micro USB cable good or not. Assist to measure Type-C cable good or not. Assist to measure output current capacity of charger good or not. The usage of large batch ageing test at the charger factory. Specification: Product Model LD35 Rated operational voltage DC4-25.0V Max discharging power 35W Rated operational current 0.25-5.00A (when fan don't work, the minimum constant current is 0.05A) Fan Speed 8000 ±10%RPM Constant current resolution ± (1%+3 digits) Working temperature -10℃~40℃ Adjustable potentiometer Precision multi-loop adjustable potentiometer Display mode 4 bit LED tube Expansion port Micro USB port, Type-C port Weight Approx. 57g/2oz Size 8*4cm/3.1*1.6in Note: This product has no reverse connection protection. The input polarity cannot be reversed, otherwise the product is permanently damaged and cannot be repaired. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List: 1 x Electronic Load .