Features:<br> 1.Long and Slender Structure Design, Small Size and Light Weight;<br> 2.Pass CCC Certification；<br> 3.Efficiency： >87%, Full Power Devices Applied and Design.<br> 4.Constant Voltage and Constant Output Mode, Can be Used if Over Loading;<br> 5.Protection Characteristics: Over Current, Short Circuit, Overloading;<br> 6.Recovery when Troubleshooting;<br> 7.Low Noise Fans with Best Heat Dissipation Effect Design for 300W/400W;<br> Application<br> Indoor and Indoor Light Boxes, Advertising、Signature；