The WDU9-500 is a 9VDC/18.5W 1-output wall plug-in Power Supply decrease product design time. This plug-in power source eliminates the need for internal power supply cooling devices, thereby reducing the noise level, size and weight of the end product. In addition, these compact power sources keep heat away from sensitive circuits and supply a safer lower output to the end product. Wall plug-in power sources are completely enclosed to prevent tampering and since they carry many required agency listings, their use aids in gaining agency approvals. Offered in a wide range of popular voltages, the plug-in power sources are in AC/DC unregulated models with generous six foot cord lengths and 60Hz.