(147 products available)
T4 and T5 fluorescent lights are types of tubular fluorescent bulbs. They come in different diameters and are used in specific applications. These light tubes are commonly employed for commercial and industrial lighting. They are also used in residential lighting. Below are the types of T4 and T5 fluorescent lighting:
T4 Fluorescent Lighting
The T4 fluorescent tube has a smaller diameter of 12mm (0.47 inches). This makes it more compact and suitable for applications where space is limited. T4 tubes are available in different lengths. For instance, they can be found in 18-inch, 24-inch, and 36-inch lengths. The T4 fluorescent light is popular in applications such as under-cabinet lighting, decorative lighting, and small fixtures. It is used in commercial and residential lighting.
T5 Fluorescent Lighting
The T5 fluorescent tube is slightly larger in diameter. It measures 15mm (0.59 inches). The T5 fluorescent tube is known for its high efficiency and luminous output. It is available in different lengths. For example, it can be found in 28-inch, 54-inch, and 76-inch lengths. The T5 tube is used in various applications. These include; office lighting, gymnasium lighting, and horticultural lighting. Additionally, T5 bulbs can be used with electronic ballasts. This helps to improve energy efficiency and reduce flickering.
Other types of T4 and T5 fluorescent lighting include:
Miniature Fluorescent Lamps
T4 fluorescent miniature lamps are used in applications where small size and low power consumption are needed. These lamps provide an energy-efficient solution for lighting small spaces. They are available in different wattages, such as 5W, 7W, and 13W. Additionally, they come in various lengths depending on the fixture in which they are installed.
High Output Fluorescent Tubes
This type of tube includes both T4 and T5 lighting. It is designed to deliver maximum light output. They are used in applications requiring high levels of illumination. For instance, these tubes are commonly used in commercial and industrial settings. They are characterized by their higher wattage and increased luminosity.
Plug-in Fluorescent Lights
T4 and T5 lighting also includes plug-in fluorescent lights. They are characterized by their replaceable and reconfigurable design. These lights come with different configurations. For instance, they can be U-shaped, single pin, or double pin. Typically, they are used in recessed lighting fixtures and wall sconces.
T4 and T5 fluorescent tube lights have different features as outlined below:
Diameter and Size:
T4 fluorescent lights are smaller in diameter than T5 lights. They have a diameter of about 12mm or 0.4 inches. These small tubes are used where little space is available. On the other hand, T5 fluorescent tubes have a diameter of about 16mm or 0.63 inches. They produce more lumens than T4 tubes. These two diameters give T4 and T5 fluorescent lights the name T5 and T4, respectively.
Length:
T4 and T5 tubes come in various lengths. The commonly used T4 tube lengths are 18, 24, 36, and 48 inches. The 10, 14, 21, 28, 35, 49, and 54-inch lengths are commonly used for T5 fluorescent tubes. There are also other lengths of T4 and T5 tubes not mentioned.
Lumen Output:
T5 fluorescent tubes produce more lumens than T4 tubes. The T5 lights have a higher lumen output per wattage. This makes them more efficient. Luminance measures the amount of visible light a source emits. T4 tubes have a lower lumen output, making them less efficient than T5 tubes.
Applications:
Fluorescent lighting comes in different sizes, and each size has its applications. For instance, T4 fluorescent tubes are used in retail stores, under-cabinet lighting, and small signage. On the other hand, T5 tubes are used in commercial and industrial lighting, fluorescent grow lights, and workshops. They are also used in vivariums and spaces that need controlled lighting and temperature.
Energy Efficiency:
As mentioned earlier, T5 tubes produce more lumens per watt than T4 tubes. This makes them more energy efficient. The more lumens per watt a light source produces, the less energy it consumes. Therefore, T5 tubes are more popular and widely used than T4 tubes.
Ballast Compatibility:
T4 and T5 fluorescent lights require different ballasts to operate. Ballast is the electrical device that controls fluorescent tube lights. The T5 tubes require more advanced electronic ballasts, while T4 tubes use electromagnetic or electronic ballasts.
T4 and T5 fluorescent light bulbs have different applications. For instance, T4 bulbs are mainly used in decorative lighting, while T5 bulbs are widely used in commercial and industrial lighting. Some of the usage scenarios of T4 and T5 fluorescent bulbs include the following.
Consider the following factors when choosing the right T4 or T5 lighting:
Purpose and Application
Determine the lighting's intended use. Will it be for indoor plant growth, specific tasks, or ambient lighting? Assess the requirements of each application. For instance, T5 lights with high lumen output and specific spectrums are ideal for plant growth. Alternatively, T4 lights are suitable for general illumination in commercial and residential settings.
Fixture Compatibility and Installation
Consider the existing fixtures. Ensure the chosen T4 or T5 fluorescent bulbs are compatible with the current setup. Subsequently, this will minimize additional costs and expenses. Also, assess the installation requirements. For example, T5 bulbs may require more advanced fixtures due to their increased efficiency.
Energy Efficiency and Costs
T5 bulbs are generally more energy-efficient than T4. Therefore, evaluate the long-term energy costs versus the initial investment. This is especially important for businesses or applications that require continuous lighting. Choosing energy-efficient options can lead to significant savings over time.
Lumen Output and Light Quality
Consider the lumen output of the T4 or T5 bulbs. Higher lumens translate to brighter light. Assess the quality of light as well, including the color temperature and CRI. Choose a color temperature that meets the desired ambiance or functional requirements. Warmer temperatures are more suitable for cozy environments. On the other hand, cooler temperatures are good for productivity and task-oriented spaces.
Dimensionality and Design
Dimensionally, T5 bulbs are larger than T4. Thus, consider the space available for the fixtures. For compact spaces, T4 lights are more suitable. Also, consider the design aspects. Opt for lights that complement the space's aesthetic design and provide the necessary illumination.
Q: What is the main difference between T4 and T5 fluorescent lighting?
A: The primary distinction lies in their diameter and the amount of light they emit. While T4 fluorescent tubes are 12 millimeters wide, T5 tubes are 15 millimeters wide. T5 lights are also known for producing brighter light, making them ideal for uses where increased illumination is needed. Such applications include commercial and industrial settings.
Q: Are T4 and T5 fluorescent lights interchangeable?
A: No, T4 and T5 fluorescent lights are not interchangeable. Their differences in size and light output mean they require distinct fittings. Consequently, a T4 tube cannot fit into a T5 fluorescent fixture and vice versa.
Q: What does the letter 'T' in T4 and T5 fluorescent lights mean?
A: The letter 'T' in T4 and T5 fluorescent lights stands for 'tubular,' which describes the shape of the bulb. The number following the T indicates the tube's diameter in eighths of an inch. For example, a T4 bulb measures 4 eighths of an inch, or 0.5 inches, and a T5 bulb measures 5 eighths of an inch, or 0.625 inches.
Q: Do T4 and T5 fluorescent lights consume a lot of power?
A: Generally, T5 lights consume less power than traditional fluorescent tubes. This is due to their higher lumen output per watt ratio, which makes them more efficient when compared to T4 lights. As a result, they provide greater brightness for lesser energy, leading to reduced electricity bills and lower carbon emissions.