"D Peter Maus" wrote in message
...

You've got 100 elements putting out as much light as a single
incandescent. One two, or ten superbright LED's will save you a lot of
energy. 100...not so much.

But still, there's less heating, there IS an energy saving, and
there's far less maintenance involved.

That, alone, is worth the investment.

32 ultra bright LED lamps in a single bulb draw about a watt, perhaps 1 1/4
watts. I suspect the traffic lights may draw as much as 5 watts with the
number of lamps therein. These are replacing standard 67 1/2 watt
incandescents normally used in traffic lights.