Thread: led question
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Old 05-11-2009, 03:40 PM   #6 (permalink)
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BORK! - '89 Volvo 240 DL Wagon
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The LED brake light units on school buses, commuter buses, and semi-trucks use 12mm diameter LED in collimator arrays, or 5mm LEDs in diffusion lenses.
You don't really need a wide viewing angle for them to be effective.
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