LEDupdates 2pcs 20" Showcase LED Light 40" length for 4ft Showcase, Under cabinet, closet and many more U5630 package with UL 12v Ac Adapter Great for showcase that is 3ft to 4ft. can be use for under cabinet lighting too Each LED Light bar length is 20 inch 2 light will be link together for you with a 3 inches wire in between (total length is 40 inch ) 6000K pure white color great effect for watch, jewelry and general products. Hight quality UL Listed 12v 3A power supply included 120 degree beam angle for best light spread result.