Myth 3:
LEDs aren’t bright enough and have poor light quality.
This was true at one time, but no more It can be refuted with some technical specs. LEDs have color temperatures ranging from 2,500K (warm white) to 6,500K (daylight), and Color Rendering Indexes between 75 and 85, with some high-end LEDs topping 90. (Incandescent bulbs have a CRI of 100 by definition, the highest possible value. For comparison, low-pressure sodium lights have a CRI of -44; Coated mercury vapor’s CRI is 49, Tri-phosphor warm-white fluorescents have a CRI of 73,; and quartz metal halide lamps rate an 85 CRI.)
Traffic engineers also think LEDs are plenty bright. They go into traffic signals which must be visible in the brightest sunlight. Traffic and auto engineers also use LEDs on vehicle headlight and tail lights, and to illuminate tunnels and other roadways. LEDs are also used to light up entire buildings and large rooms.
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