IVT Smart Living Charge controller 633657 - IVT 200013, The IVT PWM Seriell 12/24 charge controller is manufactured by Conrad and designed for solar power applications, compatible with 12/24 V systems. Measuring 70x58x29mm, it supports up to 4A and operates between -10 to +50°C. This controller is typically used to regulate battery charging in solar and wind power systems. IVT 200013 PWM Charge Controller 12/24V 4A Solar Regulator 55W