These lights are a 2 wire light. You will need to hook up a positive wire and a negative wire before they will work. An elegant design, incorporating high-end LED's and circuit board material, sealed in extra-thick poly-carbonate produces a tough and reliable lighting solution at an exceptional price. Next-generation LEDs provides a very high brightness level several times the required specification. You can use the light as-is, or dress it up with a high-polish stainless steel snap-on cover to give it that ‘finished’ look. Also available with Gaskets for a weather tight mounting anywhere! These lights are made in the USA and come with a Lifetime Warranty! Available in Red and Amber LEDs, Clear lens with or without Stainless Steel Trim Rings. 6" Wire pigtail for 9 - 14V DC. Dimensions: 2" x 0.65" / 1.375" - Surface Mounts with 2 #8 screws with 1.375" Hole spacing (Screws are not Included). THIS IS FOR A PAIR OF LIGHTS, TWO LIGHTS!