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The PHILIPS ADVANCE LI533H4IC is a single-lamp HID ballast ignitor designed for metal halide lighting systems. It provides the high-voltage starting pulse required to strike and restrike metal halide lamps across a wide wattage range of 50 to 450 watts. This ignitor is compatible with Super CWA, CWA, HX, and R circuit ballast types, making it a versatile component for commercial and industrial lighting installations. It operates across five standard line voltages and weighs 0.3 pounds, making it a compact, lightweight component suited for retrofit and new construction alike. Licensed electricians typically perform installation in commercial fixture housings.
This ignitor is used in commercial and industrial HID lighting applications where metal halide sources are specified. Typical installations include warehouse lighting, sports facilities, parking structures, and retail high-bay fixtures. The broad voltage compatibility spanning 120 volts through 480 volts means it can be specified across single-phase and three-phase distribution systems without sourcing multiple part numbers. Its single-lamp configuration suits individual fixture ballast assemblies commonly found in standard commercial pendant and flood-type fixtures.
Designed as a replacement ignitor for single-lamp metal halide HID ballast assemblies using Super CWA, CWA, HX, or R circuit types across the 50 to 450 watt range.
Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize the circuit and verify zero voltage at the fixture before handling any ballast components. Ensure the ignitor ratings match the existing ballast circuit type and lamp wattage before installation. Do not energize the ballast without a lamp connected, as repeated no-load ignitor firing can shorten component life.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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