Lighting Capacitors Cornell Dubilier (CDE) Lighting Capacitors are constructed using high-quality materials and Lean Six Sigma manufacturing practices. These rugged, reliable capacitors undergo 100% outgoing electrical and visual testing, and representative UL fault current, environmental, and accelerated life testing. The series includes both oil-filled and dry capacitors constructed with film designed to withstand the rigors of the application and are built to operate up to +105°C. CDE lighting capacitors are built with a ±3% capacitance tolerance and are designed to operate for a minimum of 60,000 hours.