This FY-38 LED showcase pole light can be use for inside jewelry cabinet, retail showcase or any places that you need bright elegant light to highlight your product. These pole LED light are very easy to install into cabinet or showcase light just drill a small 7/16 inch hole, insert the FY-38 light, secure the bottom with included nuts and connect the wire and you are done! These LED lights use very low energy of 4~5W each light pole. Slim and now profile design suitable for showcase, museum, display case and high end boutique stores. Wire can be cut and extend the range for your specific needs. it operate at 12v DC. ( DO NOT connect LED directly to 110v outlet. use only AC to 12V DC power supply provided) SPECIFICATION of LED Light:: Emitting Color: White 4000K LED Type: 1W x3 on each Cree LED Input voltage: 12V DC Beaming Angle: 120 Total Height: 14.5 inches Light bend down height: 13 inches cabinet hole size requirement : 7/16 inch Package content: FY-38 series jewelry showcase pole light UL Listed 12V DC 2A Power Supply Please feel free to contact us with any questions.