Asymmetric Vs Symmetric Floodlights
What is the difference between asymmetric and symmetric floodlights?
Asymmetric floodlights use reflectors to direct light in front of the fixture where illuminance is required, compared with symmetrical floodlights which distribute light evenly in all directions. Asymmetric floodlights are superior in concentrating light where it is needed, compared with symmetric versions, which is achieved by using cutting edge lens technology which allows us to direct the beam to the selected area. This, in turn, allows asymmetric floodlights to achieve up to a 50% better output utilisation into the intended illuminated area.
Compared with symmetric floodlights, asymmetric versions provide lower indirect glare for those using the space, making them perfect for use in sports grounds.
The below graphic highlights the difference between the two versions of floodlights. Symmetrical floodlights illuminate the whole of the side of the building, and the ground in front of the lamp post. The light spill also includes having direct upward light and a proportion of backlight behind the lamp post.
Asymmetrical floodlights, on the other hand, only illuminate the area marked in the graphic between the two posts, marked ‘area to be lit.’ This type of floodlight concentrates the light to a specific area just in front of the floodlight, reducing any unwanted light spilling on to neighbouring properties, making it ideal for use in towns and cities.