Reply to post: Re: Let there be light!

White LED lies: It's great, but Nobel physics prize-winning great?

Alan Brown Silver badge

Re: Let there be light!

"My large town switches off all the street lights at midnight - leaving only a few high level clusters on major roads."

LED plus sensors means that they can be dialled back 90%, but still fire up as cars/people go under them (the lamps communicate to adjacent poles, so it's not just the one you're under which lights up). This technology has been around a few years now.

As for energy costs, the single most expensive part of any streetlamp's operation is getting a bloke to change the lamp. Traditional ones are rated in on/off cycles as well as hours, so switching 'em off early may not make them last any longer and does bugger-all to save money overall. That sounds more like someone with a fetish for dark skies (Any amateur astonomers on the council?)

The pitch black conditions and increased nighttime accident rate sounds like a perfect oppportunity for compensation lawyers to wipe out any savings made - and then some.

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