Average lamp hours being roughly equivalent amongst the following, which has the highest lumens per watt output?
A. Mercury vapor
B. Fluorescent
C. High-pressure sodium
AnswerC. High-pressure sodium (45-110), then B. Fluorescent (33-77) and then A. Mercury vapor (13-48)
ARE 4.0 exam prep: SPD
A. Mercury vapor
B. Fluorescent
C. High-pressure sodium
AnswerC. High-pressure sodium (45-110), then B. Fluorescent (33-77) and then A. Mercury vapor (13-48)
ARE 4.0 exam prep: SPD
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