CUGLB Universal 12W Power Adapter for Home Electronics *With protection of over voltages, over current, short circuits and over temperature, bring much safety! *12 Month Warranty to make sure excellent user experience! Tip Polarity: Inner Negative(-), Outer Positive(+) Some musical devices and radio devices requires inner Negative outer Positive, totally opposite, please check carefully before buying! Specifications: Input:110-240V Output: 3V, 4.5V, 5V, 6V, 7.5V, 9V, 12V Power: Max 12W Tip size: Tip1:5.5×2.5mm Tip2:5.5×2.1mm Tip3: 4.0×1.7mm Tip4: 3.5×1.35mm Tip5:2.35×0.75mm Tip6: 3.0*1.1mm Compatible with: Fitting for lots of compatible small household electronics, like routers, CCTV cameras, LED Strips, etc.Caution: 1* NOT compatible with laptop or other high power equipment; 2* NOT compatible with Over 12W Devices and the Polarity could not be reversed. 3* Any issue for the product, please keep free to Contact us before returning. We always Stand Behind and Offer Fantastic After-Sale Support!