Signa’s newest electronic sign ballasts feature parallel lamp operation and offer the convenience of universal input voltage (108-305 volts) as a standard feature. This technology incorporates the intelligence to sense the input voltage and regulate the input current to the ballast so that the output control to the lamps remains constant across the entire range (108-305 volts). Universal voltage is installer-friendly and eliminates the costly problem of miswiring ballasts and signs with incorrect voltage. This also reduces the inventory requirements for sign manufacturers, distributors and end users-and ensures you have the right voltage ballasts for sign applications every time. With parallel lamp operation, when one lamp fails, the other lamps remain ignited so that signs are still illuminated. Because our electronic sign ballasts feature a traditional can and mounting footprint, there is no need to modify existing sign layouts. The ballasts’ instant start technology reduces the number of lamp leads and simplifies wiring. Industry-standard wiring configurations with red and blue leads eliminate installation confusion. Multiple lamp use allows sign manufacturers to better illuminate signs by using different combinations of lamps on each circuit.