The Holland Bar Stool Co.’s indoor/outdoor LED Logo Clocks are the perfect way to show your support for our troops. These clocks are made to handle the outside environment. The casing is made from a UV resistant black ABS plastic and the glass face lens has a rubber gasket to seal the weather from the inner clock housing.Four LED lights are controlled by a photo eye, turning on automatically when it is dark to illuminate the clock face. LED lights run off 4 D batteries (not included). Art work is digitally printed with UV inks to ensure years of fade free, vibrant colors. Accurate quartz movement ensures proper time and is powered by a single, AA battery (not included). You can take satisfaction knowing you're buying a clock that is proudly brought to you by the Holland Bar Stool Company.