Keeping your business sign well-lit, bright and visible to passerby is crucial, that is why we offer an extensive selection of fluorescent sign ballasts. Our electronic sign ballasts are designed to operate in the most extreme conditions, ensuring they will perform as they should outdoors. Operating at temperatures as low as -20 degrees Fahrenheit, our Keystone SmartWire sign ballast are super-easy to install. Make sure your sign is the brightest around with our selection of large sign ballasts. SmartWire ballasts are highly efficient since they use electronic components, and the best part is they wire the same as traditional magnetic sign ballasts. Get reduced energy consumption with our specially formulated ballasts.