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Cardboard shipping case containing ten GE UltraStart T5 electronic ballasts

GE

GE 66339 UltraStart T5 ballast case of 10

SKU CH-WPT2-QXXWM

A case of 10 T5 ballasts with fast starting under 700 ms and cold-temperature operation to -20 °F

  • Case of 10 ballasts simplifies large projects
  • Fast start under 700 ms reduces wait time
  • Starts reliably at -20 °F for cold spaces
  • Parallel lamp operation lowers maintenance costs
  • UltraCool 90 °C case rating with 55 °C ambient approval

Case of 10 UltraStart T5 ballasts

The GE 66339 pack contains ten GE254MVPS90-ADIY ballasts designed for T5 fluorescent lamps. They suit commercial or industrial lighting projects that require multiple parallel-operated units. Installers benefit from a single bulk package for larger retrofit or new-build jobs.

Sustained operation with UltraCool rating

Each ballast carries a 90C case rating and a UL-approved 55C ambient rating for continuous duty. Auto-restart withstands temporary power losses without manual cycling. Continuous cathode cutout technology maintains efficiency during extended run periods.

Parallel operation and cold-weather starts

Parallel lamp operation lowers maintenance costs because only the failed lamp shuts down at end of life. Anti-striation control delivers consistent light quality without visible banding. Minimum starting temperature reaches -20F with a fast start time under 700ms.

How it compares

Measured against everything we stock in Lamp Ballasts & Drivers, at today’s prices. Recalculated every night.

Price $72.99
Pricier than about 55% of the 265 comparable items (median $61.99).

Specifications

Product
Brand nameGE

Questions about this item

How much heat does the 90C-rated ballast generate when running continuously in a 55C ambient environment?

The ballast is UL approved for 55C ambient operation with a 90C maximum case temperature, and UltraCool Operation keeps it running efficiently all day.

What lamp type and voltage supply do I need to install these GE254MVPS90-ADIY ballasts?

They are designed for T5 Watt-Miser lamps and operate on multi-volt input; each ballast uses parallel lamp operation with individual end-of-life protection.

Will the fast <700ms start and -20F cold rating work reliably with older T5 fixtures I already have?

Yes, the UltraStart ballast provides fast starting under 700ms, auto-restart after power dips, anti-striation control, and reliable cold starts down to -20F in existing fixtures.

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