Which of the following is a lamp characteristic?
a) the larger the wattage, the greater the efficiency
b) life expectancy
c) colour rendition
d) cost and warm up time
e) all of the above
Answer: E
Which of the following is a lamp characteristic?
a) the larger the wattage, the greater the efficiency
b) life expectancy
c) colour rendition
d) cost and warm up time
e) all of the above
Answer: E