Quik-Pak 10-Pack Fluorescent EBallasts For 2 F40T12 Linear Lamps, Preheat Rapid Start, 120V AC, 50-60Hz, Normal Ballast Factor, NPF, Model RSW234T12120A

10-Pack Fluorescent Ballasts for 2 F40T12 Lamps, 120V
✔️ Preheat rapid-start, 120V AC, 50-60Hz, 2-lamp pack

These fluorescent ballasts are built to power two F40T12 linear lamps with a preheat rapid-start design, ideal for commercial and industrial lighting fixtures requiring dependable, steady illumination.

✅ Pack size: 10-pack
✅ Fits two F40T12 lamps (2-lamp unit)
✅ Preheat rapid-start, 120V AC, 50-60Hz
✅ Normal ballast factor (NPF)
✅ Aluminum housing, color: aluminum
✅ Cross-references: REL2S40SC, QTP2X40T12120RSNSC, B240R120HP, GE240RS120-DIY, Fulham WHCG9127T12RS

💡 What is a fluorescent ballast and how does a two-lamp rapid-start ballast work in linear lighting?

A handy, practical explanation for buyers curious about ballast basics and performance.

- It regulates current to fluorescent lamps to prevent overload and flicker
- Rapid-start design preheats filament electrodes for quick, reliable ignition
- Designed for 2 F40T12 lamps at 120V and 50-60Hz with a normal ballast factor
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