What is NEMA

Types of Directional Lighting Lamps

Directional lighting fixtures utilize three different types of lamps: incandescent, fluorescent, and LED. The choice of lamp has an impact on the fixture’s performance, such as the brightness of the light, the color of the light, the lifespan of the lamp or fixture, and its energy consumption.

The most efficient shape for both directions in 2D is a square shell or box. However, when it comes to bending in any direction, a cylindrical shell or tube is the most efficient shape. For unidirectional bending, the superior choice is the I or wide flange beam.

The arc, resembling a circle, is considered the most robust structural shape. Similarly, in nature, the sphere is recognized as the strongest three-dimensional shape. This is due to the fact that stress is evenly distributed along the arc, rather than being concentrated at a single point.

The ideal beam pattern should feature distinct cut-off lines at the upper part of the beam, as well as a spread that extends slightly beyond the road. Additionally, it should exhibit well-defined hot spots that provide high-quality forward lighting, enabling a clear view of the road ahead.

For single filament bulbs, it is recommended to have the diodes (LED chips) arranged in a side to side orientation. This means that one set of LED’s should face at 3 o’clock and the other set should face at 9 o’clock.

The four fundamental angles of lighting include side light, front light, back light, and top light. Side light enhances the visibility of shadows in your scene, while also adding depth and shape to your photograph.

The most effective angle for front lighting is the vertical angle. As mentioned earlier, placing the stage lighting frontlight at a 45-degree angle on the height is the ideal position. However, this may not always be feasible. It is important to consider the height of the lights, as if they are too high, they will cast shadows under the eyes and neck, making it difficult to establish a connection with the speaker.

Generally, if you are uncertain about the appropriate beam angle for LED lights, a range of 60 to 120 degrees is suitable for most situations. Opting for lights with a wider beam angle of around 60 degrees is commonly known as flood lighting.

The distinction between LED floodlights and floodlights lies in the visual impact of the lighting. LED floodlights should not have an excessive number of light sources, as this can result in a lackluster and dim visual effect.

Using High Beams

“The LED lights are highly effective in illuminating the road, especially when compared to halogen reflectors. In our testing, we found that LED lights outperformed halogen reflectors by illuminating the roadway up to 150 feet further.”

The key distinctions between NEMA and non-NEMA configurations lie in the design of the plug’s blades, grounding stem, and connecting blades. In particular, the grounding blade is constructed with the same thickness of material as the other blades, ensuring a sturdy and secure connection.

NEMA Type 6 and 6P enclosures are considered the most optimal NEMA ratings in terms of durability and watertight protection for electronic devices.

It is not required for all electrical components to have a NEMA enclosure. The use of NEMA ratings is simply an industry standard and is completely optional.