18 Watt 4 Foot T8 LED Tube | 2160 Lumens | 5000K | 100-277V | Clear Lens | 25 Pack

Product Overview

This 18 Watt 4 Foot T8 LED Tube is designed for direct replacement of standard 32W fluorescent tubes in retrofit applications. It delivers 2160 lumens at 5000K, providing a neutral white light suitable for commercial and institutional environments. The tube supports multiple installation methods, including single-ended and double-ended wiring, and can operate on 100-277V input. Typical use cases include office, classroom, retail, and utility area lighting retrofits where energy efficiency and maintenance reduction are priorities.

In real-world settings, this tube is commonly installed in troffers, strip fixtures, and wraparounds found in offices, schools, and healthcare support spaces. The clear lens maximizes delivered light output, making it suitable for both open and lensed fixtures. The product is ETL certified and rebate eligible, supporting compliance and cost-saving initiatives in retrofit projects.

Core Performance and Output

This tube outputs 2160 lumens at 18 watts, achieving 120 lumens per watt. The 5000K color temperature provides a crisp, neutral white light suitable for task and general illumination. The 140° beam angle ensures broad, even coverage in standard linear fixtures. Power factor is .95, and total harmonic distortion is less than 15%, supporting stable electrical performance across a wide voltage range (100-277V).

At mounting heights typical for office and commercial ceilings (8?12 feet), output is well matched to retrofit needs. Excessive output may occur in small rooms or low-ceilinged spaces, so fixture selection and spacing should be considered to avoid glare. Uniformity may decrease if tubes are spaced further apart than standard troffer or strip layouts.

Adjustability and Control Options

This tube is non-dimmable and does not support integrated controls. It is compatible with both single-ended and double-ended wiring configurations, allowing flexibility during installation. The tube can be installed with or without removing the existing fluorescent ballast, depending on wiring preference and fixture compatibility.

No onboard sensors or advanced control features are included. For applications requiring dimming or occupancy control, external systems must be used at the fixture or circuit level.

Longevity and Reliability

The tube is rated for 50,000 hours of operation, supporting long-term use in commercial and institutional environments. The solid-state LED design eliminates common fluorescent failure points such as filament burnout and ballast degradation. The product maintains consistent output and color quality over its lifespan.

Reliability is supported by ETL certification and a robust power supply design. The tube is suitable for continuous operation in typical indoor ambient conditions. Performance may be affected by excessive heat buildup in enclosed fixtures without adequate ventilation.

Build Quality and Physical Characteristics

This tube measures 4 feet in length and weighs 1 pound. The clear lens maximizes light transmission and is suitable for open or lensed fixtures. Construction supports both single-ended and double-ended wiring, with internal safety features for retrofit compatibility.

The tube is designed for use in standard T8 and T12 linear fluorescent fixtures. It is not intended for use in high-vibration or wet environments. The product is supplied in boxes of 25 for consistent deployment across large retrofit projects.

Where This Product Fits Best

This tube is intended for indoor retrofit projects where fluorescent tubes are being replaced to improve efficiency and reduce maintenance. It is best suited for commercial, educational, and institutional environments with standard linear fixtures.

• office lighting retrofit
• classroom lighting retrofit
• retail lighting retrofit
• utility area lighting retrofit
• warehouse aisle lighting retrofit
• healthcare support lighting retrofit
• municipal building retrofit
• corridor lighting retrofit

Environments with stable indoor temperatures and standard ceiling heights are ideal. The tube is not rated for wet locations or outdoor use. Installation flexibility supports a range of retrofit scenarios, including direct-wire and ballast-bypass configurations.

Installation and Long-Term Use

Installation supports three methods: direct-wire single-ended, direct-wire double-ended, or operation with compatible electronic ballasts. Removing the fluorescent ballast is recommended for maximum efficiency and reliability. The tube fits standard 4-foot linear fixtures, including troffers, strips, and wraps.

Long-term use is supported by a 50,000-hour rated life and solid-state construction. Maintenance requirements are minimal compared to fluorescent tubes. For best results, ensure fixtures are clean and free of dust buildup, and verify wiring configuration before energizing the circuit.

How This Fixture Is Commonly Used

Commonly installed at ceiling heights of 8 to 12 feet in offices, classrooms, corridors, and retail spaces. Typical layouts follow existing troffer or strip fixture spacing, with one tube per lamp holder. In warehouse aisles or utility areas, tubes are spaced according to fixture density and required light levels.

Spacing and fixture count may be reduced compared to fluorescent due to higher output per tube, but excessive reduction can impact uniformity. For best results, maintain standard fixture spacing and consider glare control in low-ceilinged or high-occupancy areas.

Safety, Certifications, and Warranty

This tube is ETL certified and rebate eligible. It operates on 100-277V and meets standard safety and performance requirements for commercial retrofit applications. The product is supplied with a manufacturer warranty covering defects in materials and workmanship.

No hazardous materials such as mercury are present. The tube is suitable for use in environments where fluorescent lamp disposal is a concern. Always follow local codes and safety practices during installation and retrofit work.

Frequently Asked Questions

Q: What wiring options are supported for this tube?

A: The tube supports single-ended, double-ended, and ballast-bypass wiring configurations.

Q: Is this tube dimmable?

A: No, this tube does not support dimming.

Q: What is the recommended mounting height for optimal performance?

A: Typical mounting heights are 8 to 12 feet, matching standard office and commercial ceilings.

Q: Can this tube be used in enclosed fixtures?

A: Yes, but ensure adequate ventilation to prevent heat buildup and maintain rated lifespan.

Q: How many tubes are included per box?

A: Each box contains 25 tubes.

Q: What is the expected lifespan of this tube?

A: The tube is rated for 50,000 hours of operation.

Q: Are there any special considerations for spacing or fixture count when retrofitting?

A: Higher output may allow for reduced fixture count, but maintain standard spacing to ensure uniform light distribution.

Application Questions and Clarification

Q: Is this tube suitable for healthcare support lighting retrofit projects?

A: Yes, it is commonly used in healthcare support areas as part of retrofit upgrades.

Q: Can this tube be used for warehouse aisle lighting retrofit?

A: Yes, it is appropriate for warehouse aisle retrofits where linear fluorescent fixtures are present.

Q: Is this tube intended for new construction or only retrofit applications?

A: This tube is designed specifically for retrofit of existing linear fluorescent fixtures.

Q: Is this tube suitable for outdoor or wet location use?

A: No, this tube is intended for dry, indoor environments only.