Switch Appeal

Designing LED roadway fixtures requires more than simply replacing the light source.

6 MIN READ

Tang Yau Hoong


Name: VFL500 LED series
Manufacturer: We-ef
Website: we-ef.com
Overview: The optical system for this series of roadway luminaires is based on the company’s One LED Concept (OLC) technology. Instead f pointing LEDs in multiple directions to produce uniform light collectively, OLC follows a multilayered approach in which each LED and lens produces the identical light distribution. When stacked together, the light distributions create a uniform illumination even when individual LEDs are off. The contoured, butterfly-shaped lens over each LED limits internal reflection while increasing illuminance at the 60- to 75-degree angle.
Configurations: The smaller VFL530 LED luminaire uses 12 or 24 LEDs, while the VFL540 LED street-and-area luminaire uses 24, 36, or 42 LEDs.
Lighting Distribution: The VFL500 LED series offers lens types for five distributions—three for streetlighting, one for asymmetric forward throw, and one for rectangular forward throw.
Height and Spacing: The series has a recommended mounting height of 2.5 to 8 meters (8 to 26 feet) and a maximum SHR of 5.5 to 9, depending on the luminaire model and application.
Housing: Four-piece, die-cast, marine-grade, aluminium alloy.
Thermal Management: Integrated heat sink with an optional thermal switch.
Color Temperature Options: 3000K and 4000K
Additional Features:

  • Basic, motion, advanced, and dynamic control options available.
  • IDA compliant

About the Author

Wanda Lau

Wanda Lau, LEED AP, is the former executive editor of ARCHITECT magazine. Along with 10 years of experience in architecture, engineering, and construction management, she holds a B.S. in civil engineering from Michigan State University, an S.M. in building technology from MIT, and an M.A. in journalism from Syracuse University's Newhouse School. Her work appears in several journals, books, and magazines, including Men's Health, ASID Icon, and University Business. Follow her on Twitter.

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