Hi there, when it comes to replacing your Oracle Responsive Power FS1250, both the SP12-5 and the PS-1250 are suitable options. It really depends on your specific requirements. The SP12-5 is known for its high reliability and performance, making it a great choice for critical applications. On the other hand, the PS-1250 is a more cost-effective option without compromising much on quality. If you need a top-tier replacement and are willing to invest, go for the SP12-5. If you’re looking for a budget-friendly alternative that still performs well, the PS-1250 should work for you.