The street lights turn on when it's dark and go red. Then, after a couple of minutes they turn orange/amber. Does anyone know why?
2007-11-14 03:39:49 · 10 answers · asked by Jessica 4 in Home & Garden ➔ Other - Home & Garden
The bulbs are usually H I D high intensity discharge bulbs,,Sodium,,they need a massive power supply to get them going only 240V but it has to be almost pumped in ,,as the Sodium gas warms the glow of the bulb changes colour ,,,,
2007-11-14 03:44:01 · answer #1 · answered by Anonymous · 1⤊ 0⤋
It's the lamps warming up. They're called Sodium lamps because they contain a small amount of sodium metal and it takes time for the lamp to heat up enough to turn the metal into vapour. It's the Sodium vapour (not a wire like an ordinary bulb) that makes the characteristic orange glow.
2007-11-14 04:58:42 · answer #2 · answered by Timbo 3 · 1⤊ 0⤋
In my country we use monkey tails and gas to light up the streets. There are no orange/amber colors!
2007-11-14 03:44:42 · answer #3 · answered by Anonymous · 1⤊ 0⤋
The contrast of light brown and dark brown is so beautiful. I think you should go with light brown highlights.
2016-05-23 03:26:40 · answer #4 · answered by ? 3 · 0⤊ 0⤋
They must be the older ones. It's just the bulb warming up.
2007-11-14 03:44:09 · answer #5 · answered by Vivi 5 · 0⤊ 0⤋
Takes time for the bulbs to warm up.
2007-11-14 03:44:40 · answer #6 · answered by Anonymous · 0⤊ 1⤋
mine don't. maybe check with the local council. assuming you mean street lights not traffic lights.
2007-11-14 03:43:08 · answer #7 · answered by Charlene 6 · 0⤊ 1⤋
They are warming up;-} these are sodium based lights.
2007-11-14 03:43:23 · answer #8 · answered by Robert S 7 · 3⤊ 0⤋
they are signals that keep cars from crashing into each other.
2007-11-14 03:42:36 · answer #9 · answered by NYC Sewers 5 · 0⤊ 1⤋
just warming up thise crappy lightbulbs they put in there
2007-11-14 03:43:13 · answer #10 · answered by Anonymous · 3⤊ 1⤋