SIMPLE ORDERING

HOME PAGE

Multi Function TAIL LIGHTS

FEDERAL  #108 SUMMARY

3rd BRAKE CHMSLs Etc

TESTIMONIALS

ABOUT  US

CLEARANCE, SIDE  MARKER  and  I.D.s

COMPARING COMPETITORS

LEGAL CLARIFICATIONS

TLC #111-B “LEDs” project ONLY ±1% of “GATHERABLE LIGHT” that Incandescents project

Most “LED” … OEM or Aftermarket … Single, Brake/Turn Signal* Lighting that are now available in the marketplace will almost certainly be “EPLLA” non-compliant when all the obvious “Non-Contributing”, “Dead”, “Transparent”, “Beyond Test Pattern”*, “Overlapping” and “Faked” faceted or not faceted areas are subtracted from the entire exposed outer lens area … resulting in a total EPLLA that is much below the 11-5/8 in² area required to meet FMVSS #108 mandated “EPLLA” requirements* for over 80” wide, Single Brake & Turn Signal uses.             *Must be within the mandated 20° Left/Right; 10° Up/Down “Test Pattern” in 7 Function Tail Light Assemblies

Remember, common “Light Emitting Diodes” (LEDs), produce only a very directional and very small cone angle of measurable light … usually represented by a tiny ≈20° “Conal Shaped” Output … and that’s all.

This limited and very directional output represents only about one percent of all the directions of output that always emanate from the length and circumference of the typical Incandescent Bulb Filament.  This means that over a hundred 20° Cones of Output Light Rays are generated by the typical #1157 or #3157 Brake/Turn Bulb Filament compared to the single ≈20° Conal Output of a typical LED!  

This “very limited and very directional, Laser-Like* Output” is why “LEDs” draw less energy and, this is also why it takes so many LEDs to meet the mandated “Effective Projected Luminous Lens Area” (“EPLLA”) Requirements of FMVSS #108. 
   *very directional … more or less, straight out

Therefore, by using just a few “LEDs” … where each puts out only a tiny ≈20° Cone of EPLLA qualifying light … the typical, very compact*, 7 or 3-Function “LED” Lamp now being sold in the marketplace will almost always fail the mandated “EPLLA” requirements of FMVSS #108.           *as opposed to the massive sized (and very expensive) Auto and SUV Tail Light Assemblies.

To solve this inherent “LED” problem, many” LEDs must be used, and the many used … must be properly lensed so every LED properly projects its’ output within the mandated Test Pattern, and at the same time, not loosing significant output because of “LED Heat Build-Up”.  It’s time everyone concerned realizes that just projecting some Red Dots of light … even if “Photometric Compliant” does not guarantee a FMVSS #108 “EPLLA” Compliant Brake or Turn Lamp.

 Back to Index

©copyright 2006-2014