(Check dc jack before buy: 5.5x2.5mm, compatible 5.5x2.1mm). It should be among 3V~24V DC, not lower than 3V or higher than 24V DC. Check Current Check the max current your device will draw. It should be equal to or less than 3A, such as 1A, 1.5A, 2A, 2.5A, 3A.