NEMA Beam Spread


At Fireflier lighting, we take pride in providing cutting-edge LED flood lights that offer exceptional performance and lighting solutions for various applications. In this comprehensive guide, we delve into the significance of NEMA beam spread when it comes to selecting the perfect LED flood lights for your specific needs. Whether you’re looking to illuminate a large outdoor area or highlight architectural features, understanding NEMA beam spread is crucial in achieving optimal lighting results.

What is NEMA Beam Spread?

NEMA beam spread refers to the distribution of light emitted by an LED flood light. It is classified based on a set of standardized criteria established by the National Electrical Manufacturers Association (NEMA). These guidelines help both manufacturers and consumers in understanding and comparing the performance characteristics of different lighting fixtures.

NEMA Beam Spread Categories

NEMA defines beam spread using a numerical system that represents the angle at which the light is emitted from the fixture. The categories range from narrow to wide, allowing users to choose the most suitable beam spread based on their specific lighting requirements.

  1. Narrow Beam Spread (NEMA 1-7): Narrow beam spreads typically have a focused light distribution, providing a concentrated illumination in a specific direction. These beam spreads are commonly used when precise and targeted lighting is necessary, such as highlighting architectural details or accentuating specific objects.
  2. Medium Beam Spread (NEMA 8-15): Medium beam spreads offer a balanced distribution of light, providing a blend of focused illumination and wider coverage. These beam spreads are suitable for a range of applications, including general area lighting or lighting pathways.
  3. Wide Beam Spread (NEMA 16-30): Wide beam spreads emit light over a larger area, providing expansive coverage and uniform lighting. They are commonly used for illuminating large outdoor spaces, such as parking lots, sports fields, or open landscapes.

Factors Influencing NEMA Beam Spread

Several factors contribute to the beam spread characteristics of an LED flood light. Understanding these factors can help you make an informed decision when selecting the ideal fixture for your lighting project. Here are some key considerations:

1. Optics and Reflector Design

The design of the optics and reflectors within an LED flood light greatly influences the beam spread. Optics are responsible for shaping and directing the light, while reflectors help control the light distribution pattern. High-quality optics and reflectors can enhance the efficiency and accuracy of the beam spread, resulting in optimal lighting performance.

2. Beam Angle

The beam angle is a critical factor that determines the width and coverage of the light emitted from an LED flood light. It is measured as the angle between two points where the intensity of the light drops to a specified percentage of its peak intensity. The NEMA beam spread categories mentioned earlier are directly related to the beam angle.

3. Mounting Height and Distance

The mounting height and distance between the LED flood light and the illuminated area also affect the beam spread. As the distance increases, the beam spread widens, covering a larger area. Similarly, adjusting the mounting height can modify the intensity and coverage of the light.

Choosing the Right NEMA Beam Spread for Your LED Flood Lights

Selecting the appropriate NEMA beam spread for your LED flood lights is crucial in achieving the desired lighting outcome. Consider the following factors when making your decision:

1. Lighting Goals and Application

Identify your lighting goals and the specific application for which you require LED flood lights. Determine whether you need focused lighting, broader coverage, or a balance between the two. Understanding the purpose of the lighting project will help you determine the ideal NEMA beam spread category.

2. Area Size and Layout

Consider the size and layout of the area you intend to illuminate. For smaller areas or when highlighting specific objects, a narrower beam spread may be more suitable. Conversely, larger spaces require wider beam spreads to ensure comprehensive coverage.

3. Mounting Height and Distance

Evaluate the mounting height and distance between the LED flood lights and the illuminated area. These factors will impact the beam spread and intensity of the light. By adjusting the mounting height or distance, you can fine-tune the lighting distribution to match your requirements.


In conclusion, understanding NEMA beam spread is essential for selecting the most suitable LED flood lights for your lighting projects. By considering factors such as optics, beam angle, mounting height, and application requirements, you can make an informed decision that ensures optimal lighting performance.

At Fireflier Lighting, we offer a wide range of high-quality LED flood lights with varying NEMA beam spreads to cater to diverse lighting needs. Our products are designed to deliver exceptional performance, energy efficiency, and longevity. With our extensive expertise in lighting solutions, we are committed to helping you achieve outstanding lighting results in your projects.

For further assistance or to explore our LED flood light offerings, please visit our website [our website URL]. Our team of lighting experts is ready to provide you with personalized recommendations and support to meet your specific lighting requirements.

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