The SP Powerworld ADVR-440 Compatible Voltage Regulator is a direct replacement for the Original Stamford* SA465 & AS440 AVR. Accepted worldwide as the only Quality and Legal after market replacement. It's been designed to work in exactly the same way and operates at the same performance. It’s the same size, function and has the same wiring connections, it also comes with 12 months warranty. Ex stock - shipped Worldwide.