Biotech Values

[poorgradstudent]

LEDs:

>OT Quiz: Many towns have replaced their incandescent traffic lights with LED lights. The LED lights last much longer and are of course much more efficient. But in some areas, these LED lights have turned out to have what might be seen as a serious drawback. What is it?<

Higher efficiency = less loss of energy due to radiant heat = snow not melting off traffic lights during winter.