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What is T5 Bulb

Horace He

Last Updated: December 26, 2023

What is T5 Bulb

A T5 bulb is a type of fluorescent bulb characterized by its tubular shape and a diameter of 5/8ths of an inch or approximately 16mm. Unlike T8 and T12 bulbs, T5 bulbs are shorter in length, measuring around 46 inches. This distinction means that T5 bulbs do not fit standard fixtures designed for T8 and T12 bulbs without the use of a conversion kit.

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T5 bulbs are known for their energy efficiency. They consume less electricity while still providing a high-quality light output. T5 bulbs typically have an A-class energy efficiency rating, making them a cost-effective choice in terms of long-term energy savings. They are also known for their high Colour Rendering Index (CRI) and lumen output per watt. The CRI refers to the ability of a light source to accurately render colors compared to a natural light source. T5 bulbs are designed to provide a high CRI, making them suitable for applications where color accuracy is crucial, such as in retail stores or art galleries.

Frequently Asked Questions

Can I Put a T5 Bulb in a T8 Fixture

T5 fluorescent tubes cannot be directly substituted for T8 fluorescent tubes in a fixture. The reason for this is that the pins and ballasts used to operate the bulbs have different spacing. Similarly, the opposite is also true.

What Is the Difference Between T5 and LED

LED fixtures have the advantage of being mercury-free, which makes them a more environmentally friendly option compared to T5 lamps when it comes to disposal. Additionally, LEDs are more efficient when dimmed and generally produce more lumens per watt, resulting in reduced energy consumption and lower energy costs.

Can I Replace a T5 Bulb With an LED

T5 LED tubes are readily available for various types of operation, including plug-and-play, ballast bypass, or hybrid operation. Plug-and-play tubes can be easily installed by removing the existing fluorescent tube and plugging in the LED tube, as they are compatible with the existing ballasts.

Is T5 a LED Light

T5 LED tubes are compact LED light tubes designed to replace T5 fluorescent tubes. These LED tubes have the same fitting as fluorescent tubes, making it simple to install them in fixtures that originally used fluorescent tubes. T5 tubes have a G5 fitting and a diameter of 21mm.

What Is the Difference Between T12 T8 and T5

T12, T8, and T5 are all acronyms used to indicate the diameter of tubular lights. The T__ designation follows a standard measurement system where the number represents the diameter in 1/8ths of an inch. Therefore, a T5 tube has a diameter of 5/8ths of an inch, a T8 tube has a diameter of one inch (8/8ths), and a T12 tube has a diameter of one and a half inches (12/8ths).

Are T5 Bulbs Being Phased Out

T5 and T8 fluorescent tubes, as well as compact fluorescent tubes (CFL), will be gradually phased out in accordance with the European Commission’s ecodesign and RoHS directives. This phase-out process is set to be completed by 2023.

What Are T5 Lights Good For

Single and dual-bulb T5 grow lights are suitable for various purposes such as supporting seed propagation, nurturing clones and seedlings, and cultivating a small herb garden. These specific T5 fluorescent lights may not emit excessive energy, but their lower output is advantageous for the growth of smaller plants.

Why Are T5 Bulbs So Expensive

T5 fluorescent bulbs tend to have a higher price compared to other lighting options due to the need for a ballast to regulate the current. Nevertheless, the potential energy savings often outweigh the initial higher cost of purchase.

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