Philips Lighting T5 Fluorescent Fixtures
By Philips Lighting
Last reviewed: December 2025
T5 high-output fluorescent fixtures provide reliable agricultural lighting with good efficiency, though increasingly replaced by LED alternatives.
Overview
T5 high-output (HO) fluorescent lighting has been a standard for dairy barn illumination, providing good light output and efficiency, though LED technology is increasingly preferred for new installations.
Technology Basics
T5 vs. Older Fluorescent
Light Output
High-output versions provide substantial illumination for dairy applications.
Applications
Existing Installations
Many farms still operate T5 systems effectively.
Comparison to LED
Long-Day Lighting
T5 systems can support long-day lighting protocols when:
Considerations
Energy Costs
Higher operating costs compared to LED.
Maintenance
Cold Weather
Some cold start issues in unheated barns.
Upgrade Decisions
When to Replace
LED Retrofit Options
Current Recommendations
For new installations, LED is typically recommended. For existing T5 systems, continue operating while planning LED transition.
Best Practices
Lamp Selection
High-output, high-CRI options for best light quality.
Cleaning
Regular fixture cleaning maintains output.
Replacement Schedule
Replace lamps before complete failure for consistent light.
Key Features
- High-Output Tubes: Adequate light levels for LDPP programs
- Good Efficiency: Better than older fluorescent technology
- Even Light Distribution: Uniform coverage when properly spaced
- Durable Construction: Sealed fixtures for barn environments
- Lower Initial Cost: More affordable than LED alternatives
Advanced Features
- Electronic Ballasts: Improved efficiency and starting
- Sealed Fixtures: Protected from moisture and dust
Ideal For
Farm Types: Dairy farms, All housing types
Competitive Advantages
What sets T5 Fluorescent Fixtures apart from alternatives:
- Lower upfront investment than LED
- Familiar technology for most electricians
- Good light quality for dairy applications
- Established supply chain for replacement tubes
Pricing Information
Here is the pricing information for T5 Fluorescent Fixtures:
T5 high-output fluorescent lighting for agricultural use.
Pricing Model: Fluorescent fixture pricing
Philips and other manufacturers. LED now recommended for new installations due to efficiency and longevity.
Pros & Considerations
- Proven lighting technology
- Good light output
- Reasonable cost
- Photoperiod applications
- Established technology
- Less efficient than LED
- Shorter life than LED
- Mercury content concerns
- Being phased out in favor of LED
Implementation & Setup
How to implement T5 Fluorescent Fixtures on your dairy operation:
Implementation Timeline: 1-2 days installation
Training & Support
Training and support options available for T5 Fluorescent Fixtures:
Support Channels:
Evaluation Questions
Key questions to consider when evaluating T5 Fluorescent Fixtures:
- What is your budget for lighting upgrades?
- How long do you plan to operate current fixtures?
- Are LED incentives available in your area?
- What are your maintenance capabilities?