What does PAR stand for in bulbs?

Answered by Robert Dupre

PAR stands for “parabolic aluminized reflector.” This type of lighting is commonly used in theaters to provide directional lighting for stage performances. It is also sometimes used to illuminate exterior landscaping features, such as trees or architectural elements.

The PAR bulb consists of a lamp, reflector, and pressed lens all contained within the bulb itself. The reflector is made of aluminum and has a parabolic shape, which allows it to efficiently direct the light emitted by the bulb in a specific direction. This makes PAR bulbs ideal for spotlighting or highlighting specific areas or objects.

The aluminized coating on the reflector helps to enhance the reflectivity of the light, ensuring that a greater amount of light is directed where it is intended. This makes PAR bulbs more efficient in terms of light output compared to other types of bulbs.

One advantage of PAR bulbs is their versatility. They come in different sizes, ranging from PAR16 to PAR64, which refers to the diameter of the bulb in eighths of an inch. The smaller PAR16 bulbs are often used in track lighting or display lighting, while the larger PAR64 bulbs are commonly used in theaters or large outdoor installations.

In my personal experience, I have seen the effectiveness of PAR lighting in theater productions. The focused and directional light provided by PAR bulbs can dramatically enhance the visual impact of a performance, highlighting actors or specific areas of the stage. It allows for precise control over the lighting design, creating a dynamic and immersive experience for the audience.

In addition to their use in theaters, I have also seen PAR bulbs being used in outdoor settings, such as illuminating trees or architectural features in a garden or landscape. The focused beam of light can add depth and drama to the outdoor environment, creating stunning visual effects.

To summarize, PAR stands for “parabolic aluminized reflector” and refers to a type of lighting bulb commonly used in theaters and outdoor landscaping. These bulbs provide directional lighting through the use of a lamp, reflector, and pressed lens. The parabolic shape of the reflector and the aluminized coating enhance the efficiency and effectiveness of the light output. PAR bulbs are versatile and come in different sizes, allowing for various applications in both indoor and outdoor settings.