Universal ESB848-46001I Signa's® Electronic Fluorescent Sign Ballast; Universal Voltage, 420 Watt At 120 Volt, 415 Watt At 277 Volt, 4 - 6 Lamp, Instant Start

Dimension: 16.680 Inch Length x 3.240 Inch Width

Universal input voltage-installer-friendly, reduces inventory costs, ideal for international projects

Parallel lamp operation-when one lamp fails, other lamps remain lit keeping the sign illuminated, provides for ballast application flexibility

Simplified wiring industry-standard red and blue leads simplify wire management, fewer connections for quicker installation, less wires allow for easier raceway routing

Multiple lamp use operate multiple lamps in series on one circuit, improved sign lighting flexability

Active power factor correction

Less than 1.7 crest factor