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How Are Led Cat's Eye Powered

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Beswad | 14:31 Thu 14th Jul 2016 | Motoring
20 Answers
I always wondered how they are powered. Are they hard wire to a power source or solar?
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Avatar Image Mamyalynne
//The lights have a battery which is capable of storing up to 200 hours worth of charge, which means they work even on days when there is little light.//


http://www.telegraph.co.uk/news/uknews/road-and-rail-transport/11845616/End-of-the-road-for-cats-eyes.html
14:35 Thu 14th Jul 2016
Avatar Image Old_Geezer
200 hours is just over 8 days. Earlier they claimed 10. Even at 10 days charge the question of how it recharges is valid. Do they do so via solar, or the action of driving over them ? Or does the authorities have to change them every 10 days ? All seems rather unanswered.
14:49 Thu 14th Jul 2016
Avatar Image dannyk13
Solar powered
14:56 Thu 14th Jul 2016
Avatar Image Old_Geezer
Aye, just found this.
http://cleantechnica.com/2009/01/17/luna-road-unveils-solar-powered-led-cat-eyes/
14:57 Thu 14th Jul 2016
Avatar Image Mamyalynne
Yes it says they are solar powered in the link I gave above - hard wired in tunnels.
15:00 Thu 14th Jul 2016
Avatar Image Old_Geezer
Darn. Read all the article and still managed to miss that. I used to think I could spot detail but as I age it seems I can no longer do so :-(
15:02 Thu 14th Jul 2016
Avatar Image Mamyalynne
I read it extra carefully as I didn't want to add a totally useless link - I have done that in the past.
15:06 Thu 14th Jul 2016
Avatar Image ToraToraTora
originally they where not powered at all, merely reflectors.
17:12 Thu 14th Jul 2016
Avatar Image Zacs-Master
Invented by a Yorkshireman!
17:13 Thu 14th Jul 2016
Avatar Image Mamyalynne
Good old Percy.
17:14 Thu 14th Jul 2016
Avatar Image Bazile
The guy who invented cats eyes - is royalties still being paid to his estate or did he sell his rights ?
17:17 Thu 14th Jul 2016
Avatar Image mikey4444
The older type of cats eyes were just reflective...reflecting the headlights.

But the newest type are indeed solar powered, which is why you can see them shining in your rear-view mirror !

Terribly clever !
12:21 Fri 15th Jul 2016
Avatar Image dannyk13
Bazile- Percy Shaw died in 1976
12:26 Fri 15th Jul 2016
Avatar Image mikey4444
How many lives did Percy's little invention save of the years ?
12:27 Fri 15th Jul 2016
Avatar Image Old_Geezer
No way of telling. Any number from zero to millions.
20:21 Fri 15th Jul 2016
Avatar Image mikey4444
I am guessing an awful lot OG !
20:57 Fri 15th Jul 2016
Avatar Image Davemano
They must need to be earthed, that's why they are on the ground!!!!!!
21:02 Fri 15th Jul 2016
Avatar Image Old_Geezer
Well they tried them 2 foot above ground but folk kept getting their headlights smashed.
21:06 Fri 15th Jul 2016
Avatar Image ladybirder
My father was so cheesed off that he never invented them - such a simple but brilliant idea.
21:08 Fri 15th Jul 2016
Avatar Image vulcan42
The old reflective cats eyes had a self cleaning system, do the new Led types have a similar system or do they not need cleaning?
21:11 Fri 15th Jul 2016

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