Description
At a glance
T5HO lighting, the way it should be done.
This ballast runs high-output lamps with smooth, flicker-free starts and over 90% system efficiency, keeping your energy costs down and your lamp life up. Designed with QUICKSENSE® shutdown tech, universal voltage (120–277V), and a slim housing, it's made for big jobs in tight spaces — from high bays to retail coves.
It supports multiple T5HO lamp types and fires up even in freezing cold. Set it, wire it, forget it.
✅ You need this if:
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You’re powering T5HO lamps in a commercial, industrial, or retail environment
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You want soft starts that preserve lamp life (programmed rapid start)
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You need universal voltage compatibility (120–277V, 108–305V range)
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You're looking for high efficiency (>90%) and low THD (<10%)
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You need ballast protection features like EoL shutdown (QUICKSENSE®)
❌ You don’t need this if:
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You’re working with T8 or non-HO lamps
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You want instant start tech (this is programmed start only)
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You’re not sure about ballast length or fit — see below for dimensions
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You plan to return it after install — wired = final sale
📊 Technical Specs
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Ballast Type: Electronic, Programmed Rapid Start
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Input Voltage: 120–277V (Range: 108–305V)
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Start Temp: Down to -29°C / -20°F
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THD: <10%
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Power Factor: >98%
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Ballast Factor: 1.00 (varies by lamp type)
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Sound Rating: A
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Certifications: UL, FCC, RoHS, ANSI C62.41
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Warranty: 5-Year Limited
💡 Performance by Lamp Type:
| Lamp Type | # of Lamps | Ballast Factor | Initial Lumens | Mean Lumens | Power (W) | Efficacy (lm/W) |
|---|---|---|---|---|---|---|
| FP54T5HO | 2 | 1.00 | 10,000 | 9,300 | 119 | 86 |
| F54/50W/ES | 2 | 1.02 | 10,200 | 9,485 | 112 | 94 |
| F54/47W/ES | 2 | 1.02 | 9,335 | 8,680 | 105 | 91 |
| F39T5HO | 2 | 1.00 | 7,000 | 6,510 | 83 | 86 |
| F24T5HO | 2 | 1.00 | 4,000 | 3,720 | 54 | 75 |
📐 Dimensions by Model
QHE 2x54T5HO UNV PSN HT EB
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Overall: 16.73" L x 1.18" W x 1.00" H
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Mounting: 16.34" (415 mm)
QHE 2x3924T5HO UNV PSN EB
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Overall: 14.17" L x 1.18" W x 0.87" H
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Mounting: 13.74" (349 mm)
🔧 Installation Notes:
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Ground the case properly
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Use 18AWG solid copper wire
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Remote mounting supported (18 ft for red leads, 10 ft for blue)
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For cove lighting, indirect fixtures, or surface mounts
📌 Best For:
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High bay commercial installs
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Institutional or retail retrofits
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Hospitality and indirect architectural lighting
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New builds with T5HO spec requirements
⚠️ Important Notice:
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Confirm lamp and fixture compatibility
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Installed ballasts are non-returnable
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Follow local electrical codes and mounting instructions