The Holland Bar Stool Co.’s indoor/outdoor LED Logo Thermometers are the perfect way to show your support for our troops. These Thermometers 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 thermometer housing. Four LED lights are controlled by a photo eye, turning on automatically when it is dark to illuminate the thermometer face. LED lights run off 4 D batteries (not included). Artwork is digitally printed with UV inks to ensure years of fade free, vibrant colors. Take satisfaction knowing you're buying a thermometer that is proudly brought to you by the Holland Bar Stool Company.