A 4-pin fluorescent bulb is another type of compact fluorescent lamp (CFL) that features four pins at one end, which are used to connect the bulb to its fixture. These bulbs are more commonly found in commercial lighting and are generally more efficient than traditional incandescent bulbs. The 4-pin design allows for a more stable electrical connection and typically supports higher wattage and a longer lifespan compared to bulbs with fewer pins.
Key features of a 4-pin fluorescent bulb:
Pins and Base: The four pins on the base of the bulb provide the electrical connection between the bulb and the fixture. Common base types for 4-pin bulbs include GX24q, G24q, and others. The exact pin configuration can vary depending on the wattage and model.
Energy Efficiency: Like other fluorescent lamps, 4-pin bulbs are energy-efficient, providing more light per watt compared to incandescent bulbs. They are commonly used in areas requiring continuous or bright lighting, such as offices, kitchens, and industrial spaces.
Lifespan and Performance: 4-pin fluorescent bulbs tend to have a longer lifespan than regular incandescent bulbs. They are designed to last for thousands of hours, making them a cost-effective lighting solution over time.
Color Options: These bulbs typically come in various color temperatures, ranging from cool white to warm white, allowing for a range of lighting options depending on the environment and the intended use.
Ballast Required: These bulbs usually require an external electronic ballast to operate, which helps regulate the current and ensures stable performance. Some 4-pin bulbs may also feature integrated ballasts (often referred to as plug-in bulbs).
These bulbs are typically used in fixtures such as recessed lighting, ceiling-mounted lights, and outdoor lighting, offering both energy savings and long-lasting illumination.
