Practice question
What is the primary benefit of using LED signal heads over incandescent signal heads?
- LED signals are brighter and easier to see in all conditions
- LED signals consume significantly less energy, have longer life spans, and maintain consistent brightness throughout their life
- LED signals are less expensive to purchase initially
- LED signals generate more heat, keeping snow off the lens
Answer: B — LED signals consume significantly less energy, have longer life spans, and maintain consistent brightness throughout their life
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