All AP-7W is with same size, same shape, but difference of output voltage,  such as 5vdc or 12VDC or 15VDC or 24vdc.  Pls focus on the output voltage. 

Roduct characteristics:
Universal AC/DC input
High efficiency
Low ripple noise
Compact size: 37*28*19mm
Overload protection/Short circuit protection/Overheat protection
Built in EMC circuit
Class II Isolation level
Low power consumption,
No need for peripheral circuit design
Full load low temperature rise(@25C)
Natural cooling of plastic shell
Three years warranty

Product application:
Industrial electrical equipment
Mechanical equipment
Industrial automation equipment
Handheld electronic devices
Wireless network
Telecommunications/data Communications
Instruments and meters
Intelligent field