[TCUG] Re: Vanalism
- From: "Peter Jones" <Peter.Jones@xxxxxxxxxxxxxxxxxxxxxxx>
- To: <tcug@xxxxxxxxxxxxx>
- Date: Mon, 05 Nov 2007 09:47:57 +0000
I replaced all Mellor heads about 3 yrs ago at a junction with the
original Blue corner LED's. Unfortunately the failure rate was too high
to make them cost effective: 3 lamps in one year.
However, the new LED heads with the Centre mounted Led Source (***)
have proven very reliable and I am happy with them. In Sefton, we now
have many sites with these lanterns... good lantern design too.
The only dampener is that these particular heads cannot be converted
(so I'm told) to work with the new Extra Low Voltage controllers, they
will have a specifically designed LED head which obviously does not need
a power supply. So creating an ELV site where you have existing LED
heads would not seem as simple as replacing the controller and removing
some PSU's.
I don't know if any kind of converter may become available, I will
check with Mr Blue. (Blue sky thinking required, presumably).
Regards
Peter Jones
Principal Traffic Systems Engineer
Phone: +44 (0) 151 934 4254
Fax: +44 (0) 151 922 4514
Sefton MBC - UTC
3rd Floor
Magdalen House
30 Trinity Road
Bootle
L20 3NJ
>>> "Matthew Smith" <MASmith@xxxxxxxxxxxx> 05/11/2007 09:28 >>>
Quick straw poll.
What are peoples experiences with the robustness of signal heads from
the red and blue corner?
From practical experience does one survive up better than another.
Thanks
Matt Smith. Assistant Engineer
Engineering Design | Traffic Signals
Leicestershire Highways
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