Profile: Advance Product Services Ltd. is a provider of design and repair service for DC power supplies. We are an ISO 9001:2000 registered company. Our service spectrum encompasses products like instruments, N range products, battery chargers, rectifiers, shelves and load units. We also supply form, fit and function replacements for selected models of obsolete power supplies. We define our form, fit and function replacement services by utilizing a fully approved AC/DC base converter in conjunction with a purpose built signals and sequencing package to meet or exceed the performance of the original power supply in all aspects. We also specialize in the design of switch mode power supplies.