End-of-lamp-life-compatible (ELC) Emergency Ballasts Available 

A growing number of compact and linear electronic fluorescent AC ballasts utilize end-of-lamp-life (EOL) technology. Bodine’s patented ELC (end-of-lamp-life compatible) circuit allows our fluorescent emergency ballasts (FEBs) to operate these lamps without the issue of shutdown often seen in the pairing of EOL detection circuitry and FEBs.

When an FEB is in use, the EOL circuit in an AC ballast may mistakenly interpret the transition from emergency operation to normal operation as an end-of-lamp-life condition. When this happens, the EOL circuit instructs the AC ballast to shut down. Normal lighting is not restored until the AC ballast is reset.

To avoid shutdown, Bodine’s ELC circuit delays AC ballast operation for approximately three seconds. Because AC ballast operation is delayed for a few seconds, the EOL circuit in the AC ballast cannot “see” the transition and, therefore, cannot misinterpret it.

Many Philips Bodine FEBs are ELC. Philips Bodine products that do not utilize ELC circuitry include RTC units, “-CAN” models, 2-pin CFL emergency ballasts, GEN1, GEN3, B33, B50CHIC, B50Cold-Pak, BDL60U, BHD65U, CB90-48 and ARC Keeper HID backup ballasts.

Some of these products will transition to ELC in the future. Contact the factory at 800-223-5728 for more information.

Learn more on our ELC circuitry

Note:
Self-Testing products are only available in the ELC versions. To download literature for previous Non-ELC versions of these produts, visit the Downloads page.