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Products  »  Outdoor LED Lighting  »  LED Lensing

LED Lensing

  • Lens Design & Classification
  • LED Lens Distribution
  • Lens Distribution at 35 ft.
  • IES Roadway Classifications

 

  • What is the plastic covering over the LEDs?
    This is called the Lens or Optics. The optic lens will focus the LED to control the distribution of light. This allows us to provide different light distributions for
    different applications. We offer a variety of lenses to meet Type I –Type 4
    roadway patterns.
  • LED Lens How do I specify which lens I need?
    T Series (T3, T4), A Series(A2, A2M2, A3, A4)

    T series is a symmetrical lens, A series is an asymmetrical lens. The symmetrical lens will have the same luminance directed toward the road and off the road (to the rear of the streetlight). The asymmetrical lens will be more effective on the road side, and have less light shining off the road.

The difference between lens designs will be in the angle on the each side.
 

  Horizontal Vertical
T3 -40~40 degree -38~38 degree
T4 -65~65 degree -30~30 degree
A2S -65~65 degree -22~50 degree
A2M2 -75~75 degree -22~45 degree
A3 -75~75 degree -45~65 degree
A4 -50~50 degree -10~70 degree

 

 

A2
A3
A4
T3
T4

 

 

Lens

 A2   A3   A4 
Direction  H V  H  V  H  V 
Beam Pattern ft. 95 ft. 230 ft. 98 ft. 105 ft.  133 ft. 
Lux Level  Max  Min   Max   Min   Max  Min
* / 40 ft. /  40 ft. / 42 ft.
28W Light / / / /  /  / 
42W Light /  /  /  /  /  / 
56W Light /  /  /  /  /  / 
70W Light 17 Lux 2 Lux  /  /  /  / 
84W Light 19 Lux  2 Lux  / /  /  / 
98W Light 21 Lux  2 Lux  /  /  16 Lux  2 Lux 
112W Light 23 Lux  2 Lux  /  /  18 Lux  2 Lux 
126W Light 25 Lux  2 Lux  /  /  20 Lux  2 Lux 
140W Light 27 Lux  2 Lux  / /  22 Lux  2 Lux 
154W Light 29 Lux  3 Lux  16 Lux  2 Lux  24 Lux  2 Lux 
168W Light 31 Lux  3 Lux  18 Lux  2 Lux  26 Lux  2 Lux 
182W Light 33 Lux  3 Lux  20 Lux  2 Lux  28 Lux  3 Lux 
196W Light 35 Lux  3 Lux  22 Lux  2 Lux  30 Lux  3 Lux 
210W Light 37 Lux  4 Lux  24 Lux  2 Lux  32 Lux  3 Lux 
224W Light 39 Lux  4 Lux  26 Lux  3 Lux  34 Lux  3 Lux 
Lens T3 T4
Direction H V H V
Beam pattern 94 ft. 72 ft. 185 ft. 77 ft. 
Lux Level  Max Min Max Min
* / / / /
28W Light / / / /
42W Light / / / /
56W Light / / / /
70W Light 19 Lux 2 Lux / /
84W Light 22 Lux 2 Lux / /
98W Light 25 Lux 2 Lux / /
112W Light 28 Lux 3 Lux / /
126W Light 31 Lux 3 Lux 17 Lux 2 Lux
140W light 34 Lux 3 Lux 19 Lux 2 Lux
154W Light 37 Lux 4 Lux 21 Lux 2 Lux
168W light 40 Lux 4 Lux 23 Lux 2 Lux
182W Light 43 Lux 4 Lux 25 Lux 3 Lux
196W light 46 Lux 4 Lux 27 Lux 3 Lux
210W Light 49 Lux 5 Lux 29 Lux 3 Lux
224W Light 52 Lux 5 Lux 31 Lux 3 Lux

 Remarks:

  • 35 feet
  • H means the horizontal side, the same side of install the light
  • V means the vertical side, which is the width of the road side
  • Every beam pattern dimension is calculated based on the area which edge lux level reduced to the 10% of the center point lux level
  • A series lens is asymmetrical kind of lens, so the vertical side will be calculate at the line where the light is installed
  • * means the distance between road side edge of beam pattern to the light installation position

 

Type I: The Type I luminaire is placed in the center of the roadway or area where lighting is required. It produces a long, narrow, oval-shaped lighted area. Some types of high-mast lighting are considered a modified form of Type I.

Type II: The Type II luminaire is placed on the side of the roadway or edge of the area to be lighted. It produces a long, narrow, oval-shaped lighted area which is usually applicable to narrower roadways.

Type III: The Type III luminaire is placed on the side of the roadway or edge of the area to be lighted. It produces an oval-shaped lighted area and is usually applicable to medium width roadways.

Type IV: The Type IV luminaire is placed on the side of the roadway or the edge of area to be lighted. It produces a wider, oval-shaped lighted area and is usually applicable to wide roadways.

Type V: The Type V luminaire is located over the center of the roadway, intersection, or area to be lighted. It produces a circular, lighted area. Type V often is used in high-mast lighting applications.

Products »

  • Outdoor LED Signs
  • Indoor LED Signs
  • Outdoor LED Lighting
    • LED Lighting 101
    • Why Choose LED Lighting
    • LED Lensing
    • LED Parking Garage Light
    • LED Parking Lot / LED Street Light
    • LED Billboard Flood Light
    • LED Canopy Lights
    • LED High Bay Light
    • Outdoor LED ROI Calculator
  • LCD Displays

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