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Rectangular steel ballast housing, neutral finish, wiring terminals visible

Philips

Philips Advance 120/277V 46in T5 Step Dimming Ballast

SKU CH-EFY2-KPAHX

Electronic fluorescent dimming ballast for one or two T5 lamps up to 35 W, operating on 120 to 277 V AC with 0-10 V step dimming at 100, 50 and 0 percent

  • Step dimming to 50 % cuts energy use
  • 120 to 277 V input works on standard and commercial circuits
  • Rapid start lights T5 lamps without flicker
  • 100 / 50 / 0 % dimming range gives three light levels
  • 0 °F minimum start suits cold environments

Philips Advance 46in T5 Step Dimming Ballast

This electronic fluorescent ballast supports one or two T5 lamps at 28W or 35W each. It operates on 120 to 277V AC input and provides step dimming at 100%, 50%, and 0% levels via 0-10V control. Rapid start ensures reliable ignition at temperatures down to 0°F. Designed for commercial fixtures requiring multi-level light output.

Step Dimming Limits and 0-10V Interface

The ballast offers only three fixed light levels: full, half, and off. Continuous dimming between steps is not supported. 0-10V control wiring must be run separately from line voltage and kept within the distance limits of the control protocol. Maximum lamp power is 35W per lamp, so higher-wattage T5 lamps cannot be used.

Installation Notes and Common Issues

Wiring follows standard rapid-start diagrams for one or two lamps; lamp holders must match T5 bi-pin spacing. The 0-10V dimming leads are polarity sensitive and must not be swapped. A frequent error is using instant-start sockets, which prevents the ballast from striking the lamps. Verify fixture grounding and lamp seating before energising.

Highlights

  • Step dimming to 50 % cuts energy use
  • 120 to 277 V input works on standard and commercial circuits
  • Rapid start lights T5 lamps without flicker
  • 100 / 50 / 0 % dimming range gives three light levels
  • 0 °F minimum start suits cold environments

Specifications

BrandPHILIPS ADVANCE

Questions about this item

One or two lamps — which configuration does this ballast support?

It runs one or two T5 lamps, each rated up to 28 W or 35 W, so you can choose single or dual-lamp operation.

What light output do the three step-dimming levels actually give?

Step dimming provides 100 %, 50 % and 0 % output via 0-10 V control, letting you switch between full, half and off.

Will the 0-10 V dimming work on both 120 V and 277 V supplies?

Yes, the ballast accepts 120 to 277 V AC input and the 0-10 V step-dimming functions across the whole voltage range.

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