Flood Light BEAM SPREAD AND NEMA TYPES

Flood lighting can provide a wide range of light distribution or beam spread. Beam spread is classified into NEMA Types.

Beam Spread (°)

NEMA Type

Description

10° - 18°

1

Very Narrow

> 18° - 29°

2

Narrow

> 29° - 46°

3

Medium Narrow

> 46° - 70°

4

Medium

> 70° - 100°

5

Medium Wide

> 100° - 130°

6

Wide

> 130°+

7

Very Wide


NEMA indicates how wide or narrow the light is projected out of the flood light. Horizontal and vertical beam spread angles are used to distinguish NEMA types.
Example: If the horizonal beam spread is 120° and the vertical beam spread is 140°, then the NEMA type is 6 x 7.
GENERAL FLOOD LIGHTING PRINCIPLES
1.A narrower beam spread should be used if there is a large distance between the floodlight and the area being illuminated.
2.Narrow beam flood lights have a lower percentage of beam lumens falling outside the area to be lighted than wide beam flood lights.
3. NEMA type is determined by two angles (horizontal and vertical) where the light intensity is 10% of the maximum beam intensity.

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CKRA's Flood lighting from 20w way to 300w, available for multi options for beam angle, such as 7HX6V, 6HX4V, 3HX3V. We can also customize as per customers’ specific requirement.
Welcome to contact us should you have any questions or advice.