WikiWirral Share a Little Learn a Lot about your Wirral
Forum Stats
12132 Members
65 Forums
72375 Topics
975994 Posts
50 posts in the last 24hrs
Max Online: 7831 @ 8th Apr 2013 4:18pm
Who's Online - Click Me
84 registered (11kendo, 13 invisible), 1535 Guests and 208 Spiders online.
Key: Admin, Global Mod, Mod
Social Media : Follow Us


(Views 7days)This Weeks Most Read
Disgusting surely not legal creamfields noise !!@ 1227
anything with castors 796
Pensby Hotel 461
Wirral Globe 433
loud music in new brighton 415
Sports Personality Of The Year 378
Cubitts Holland and Hannen 311
Raspberry Pi in the classroom! 296
PC Repair needed 266
HMT Lancastria 204
New General Forums
Lib/dems rule the day
by JimmyG
10:59 PM
Daft funny joke
by venice
05:54 PM
We dont learn much.
by venice
1st Dec 2016 9:22pm
Freegle
by venice
1st Dec 2016 6:36pm
New Wirral History
Name help
by Paternoster21
08:03 AM
HMT Lancastria
by granny
11:38 PM
Cubitts Holland and Hannen
by fish5133
27th Nov 2016 5:38pm
Fire station
by chris7777
22nd Nov 2016 12:24pm
Buy a house in Greasby for 12s a week - in 1935
by yoller
6th Oct 2016 6:56pm
Forum Tips
Photo Gallery Forums
fireworks on the Mersey last night
Hadlow train station
Topic Replies
live webcam from africa, a must see
by venice
Name help
by Greenwood
04:29 PM
HMT Lancastria
by granny
02:06 PM
Stanlow Abbey
by Kylix
02:05 PM
Sports Personality Of The Year
by fish5133
01:16 PM
Raspberry Pi in the classroom!
by diggingdeeper
12:45 AM
Wirral Globe
by Excoriator
11:02 PM
What are you currently reading?
by RUDEBOX
10:30 PM
Paying for EU Citizenship (Poll)
by diggingdeeper
10:19 PM
December
M Tu W Th F Sa Su
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30 31
Recent Posts : What's On ?
Wirral TUC Meeting re Update on Wallasey CLP Suspe
by RUDEBOX
30th Nov 2016 9:16pm
World Aids Day Event 2016. Liverpool
by RUDEBOX
30th Nov 2016 9:05pm
Topic Options
Rate This Topic
#936003 - 22nd Mar 2015 11:30am LED streetlight
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
A discussion in a thread on Wirral waters threw up the subject of street light. It seems Wirral council is intending to replace inefficient street lights with LED units which, being more efficient, will save money and allow them to abandon their plan of switching the old ones off at night.

http://communityactionwirral.org.uk/wirrals-new-street-lighting-strategy-launched/

I am all for this, and these new lamps are evidently 'smart' in that they can be controlled from a central point and dimmed if necessary so over-illumination doesn't occur. It will save a great deal of money and save a lot of electricity and maintenance.

But I wonder if the council has realised that LED lamps - unlike the old sodium lamps they are replacing - can be switched on and off in nanoseconds rather than minutes. This makes it perfectly feasible to use PIR detectors to switch them on only when someone is present. This means that in many suburban roads which are largely deserted for much of the night the lights could quite easily be left in darkness until someone comes along, thereby saving even more money.

It also has the advantage of saving a great deal of light pollution which currently completely covers cities and towns with a vile orange luminous smog. Most people living there would rather like to see the stars.

Top
Wirral Info : Advertising
Click me for more Information......


Looking for a Service / Tradesman? Look in our Local Business Directory. Click Me
#936065 - 22nd Mar 2015 2:08pm Re: LED streetlight [Re: Excoriator]
Greenwood Online   content
Smartchild

Registered: 20th May 2011
Posts: 586
Loc: Greasby
That's an interesting idea about the sensors, and I agree totally about the light pollution. However, I wonder if intermittent traffic might create a sort of flickering trail of light effect that might be distracting not only to road users but people living nearby? Not so bad if they were used only through the quiet late night hours, I guess - then we could go star-gazing! As long as we stayed very still...

Top
#936089 - 22nd Mar 2015 3:27pm Re: LED streetlight [Re: Greenwood]
davew3 Offline
Forum Guide

Registered: 16th Jun 2009
Posts: 1024
Loc: Wirral
They could save even more money by cutting the ivy and the tree's blocking the lights and leaving them on all day, I see the light that has been on permanently for at least three years on the Barnston road has now been sorted unless the bulb itself has finally given up, saving money has never been top of this council's list, seems government cuts has really started to bite where it really should bite,cutting Councillors and their expenses.

Top
#936107 - 22nd Mar 2015 3:55pm Re: LED streetlight [Re: Excoriator]
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
I take your point about flickering, but if you had a 1 minute (say) on period after the last trigger, they would stay on rather than flickering. These are 'smart' lights remember, and my bet is that there is a microprocessor associated with each one.

Adding facilities like learning traffic patterns or distinguishing between people and cars or dimming the light slowly rather than abruptly switching it off is something that would be dirt cheap to add.

You might have a system which adjusts background light continuously according to the traffic pattern over ten minutes, brightening the light when traffic is heavy and allowing it to get dimmer as the traffic diminishes for instance. You might even give people or cars transponders to tell the lights near them to come on etc.

There are lots of fascinating possibilities.

Top
#936250 - 22nd Mar 2015 10:25pm Re: LED streetlight [Re: Excoriator]
KevinFinity Offline

Forum Master

Registered: 30th Apr 2009
Posts: 2311
Loc: Wirral
They can't do it quickly enough. I hate the horrible orange light pollution especially as it plauges my night photography. The tunnel approach road has been led lit for a while now. Its much easier on the eyes at night and no light is wasted shining in the sky.
In work I have just replaced a load of old 400w metal halide fittings in a large hall with 150w led floods. The energy savings are huge.

Top
#936270 - 22nd Mar 2015 11:11pm Re: LED streetlight [Re: Excoriator]
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
I'd like to replace the lights in my house with them, but they are too expensive and not bright enough.

The brightest replacement I've found was on Sale in ASDA which produced 1,500 lumens; about what you'd have got from a 100W incandescent All the other's I've seen manage about 800, which is what you'd get from a 60W incandescent.

Unfortunately I didn't snap up the ones I saw in ASDA. 15 for a lightbulb is too damn expensive. I will wait until they get cheaper.

I came across an announcement by Messrs Cree who are a leading manufacturer of LEDs. They have developed a single-chip LED capable to producing 2,500 lumens. This I think is a game changer. When it hits the market we shall see remarkable things I think.

http://www.cree.com/News-and-Events/Cree-News/Press-Releases/2014/December/XHP-LED-release

Top
#936272 - 22nd Mar 2015 11:23pm Re: LED streetlight [Re: Excoriator]
GeeMeister Offline
Smartchild

Registered: 4th Jan 2014
Posts: 658
Loc: Wirral
You make a fair point Excoriator but don't just base it on lumens. It has more to do with visible light. Most ordinary old style, and some new, give out a yellowish light and so needs a greater output for the human eye to use it. The newer LED lights work on a much whiter light making more of the visible spectrum available and so needing lower wattage/lumens and why they are more cost effective.

Top
#936289 - 22nd Mar 2015 11:59pm Re: LED streetlight [Re: Excoriator]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9547
Loc: Birkenhead
The miserable attempts at using LED lighting in Woodchurch Lane, Birkenhead is certainly not a good sales point, mid-way between lights it is near pitch darkness.

Other places on Wirral with LED street lamps have seemed a lot better.

Great to see cree making so much progress on efficiency, 70% (150 lumens per watt) is very impressive. A 2500 lumen lamp would only need 16 watts, combine that with a (say) 90% efficient switching regulator and you'd end up about 18 watts needed.

I've used compact fluorescents since they came out (initially at about 40 each), well over half of them don't last more than about three years, lets hope the reliability of LED lamps is somewhat better.
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

Top
#936299 - 23rd Mar 2015 7:13am Re: LED streetlight [Re: Excoriator]
MikeT Online   content
Smartchild

Registered: 23rd Apr 2010
Posts: 539
Loc: Canary Islands :)
The council have replaced some of the triple "retro-antique-style" lamps on New Brighton prom with LED lights. The original triple fittings were relatively new (10 years old?) but seemed unable to cope with the weather judging by the number that failed or simply fell off. They have been replaced with a single LED lamp, and the brackets for the other two lamps cut off (!)

The end result, however, looks rather odd. A very tall pole with a little farty single LED fitting at the top. I never understood why those poles had to be so tall in the first place, now they just look silly.

Top
#936310 - 23rd Mar 2015 9:16am Re: LED streetlight [Re: diggingdeeper]
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
I'm not familiar with what's been done in Woodchurch lane but I suppose if you put dimmer lights on posts that are too far apart, you will have a poor solution. I guess they don't want the expense of changing the lamp-posts and have cut corners on the lamps too.

As to CFLs, When they were expensive, I wrote the shop I'd bought them from and the date when I plugged them on the base somewhere, and if they failed early (many did) I took them back and got a replacement. Nobody ever quibbled. They are much cheaper now so I don't bother, but I don't find them much more reliable.

Leds slowly lose output with time too, so they are not perfect either. I guess, like old soldiers, they won't die, but will simply fade away...

This effect happens faster if they run hot, and keeping them cool seems to account for most of the bulbs and fittings' bulk. Look at the heatsinks on these for instance! http://www.amazon.com/Newsun-Bright-Headlight-Philips-Hi-low/dp/B00R7BLFD6 Some are even fan cooled! I guess if they ever crack this problem, they will become a lot more compact and easier to use.

I can't wait to see the end of the vile orange sodium lamps. The sooner the better and hang the expense!


Edited by Excoriator (23rd Mar 2015 9:19am)

Top
#936835 - 24th Mar 2015 9:59pm Re: LED streetlight [Re: Excoriator]
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
I made a diversion down Woodchurch Lane this evening, and see what you mean, diggingdeeper! The lighting there is totally inadequate.

Lets hope they take this as an example of what NOT to do elsewhere, rather than a model for the rest of the borough, or we shall all have to carry torches.

Speaking of which, I bought a chinese single LED torch on Aliexpress about six months back. I think it cost about a tenner, came with a lithium ion battery and charger and is the best hand torch I've ever owned. It claims to be 1,800 lumens, but in fact I think that's exaggeration. Its more like 800, but it compares with car headlights despite being only about 6""long and 3/4" in diameter.

Top
#954384 - 8th Jul 2015 10:07pm Re: LED streetlight [Re: Excoriator]
Excoriator Online   content
Veteran

Registered: 21st Jan 2010
Posts: 759
Loc: wirral
Anyone seen any sign of these new lights being installed yet?

Still got the horrible yellow ones round here.

Top
#954392 - 8th Jul 2015 10:58pm Re: LED streetlight [Re: Excoriator]
diggingdeeper Offline

Wiki Guardian

Registered: 9th Jul 2008
Posts: 9547
Loc: Birkenhead
The first roll-out is supposed to be somewhere around the Woodlands Primary School area.
_________________________
In a time of universal deceit - telling the truth is a revolutionary act. George Orwell

When the debate is lost, slander becomes the tool of the loser. Socrates

Top

Moderator:  Mod 
Random Wirral Images

Click to View Topic.
Newest Topics
Name help
by Paternoster21
08:03 AM
HMT Lancastria
by granny
11:38 PM
Wirral Globe
by locomotive
1st Dec 2016 6:25pm
54 plate renault clio 3rd brake light
by Mike72
1st Dec 2016 12:52pm
Raspberry Pi in the classroom!
by FelixCowden
30th Nov 2016 9:27pm
For Sale & Free
Steam Train Money Box/Ornaments
by Tranquil
1st Dec 2016 11:32am
Childs LFC Bike 5 - 8 Yr old
by Pete_M
1st Dec 2016 1:10am
Cat related Collectables
by Tranquil
29th Nov 2016 4:48pm
original xbox
by vw_kyle
27th Nov 2016 8:17pm
anything with castors
by lincle
27th Nov 2016 4:06pm
Featured Member
Registered: 11th Mar 2009
Posts: 462
Newest Members
Grayo123456, uptonvillage, NobbyHunt, sam1512, ant72
12132 Registered Users
Today's Birthdays
No Birthdays
New Wirral Info
Wirral Globe
by locomotive
1st Dec 2016 6:25pm
Wirral TUC Meeting re Update on Wallasey CLP Suspe
by RUDEBOX
30th Nov 2016 9:16pm
World Aids Day Event 2016. Liverpool
by RUDEBOX
30th Nov 2016 9:05pm
A job. Company not named.
by venice
30th Nov 2016 6:30pm
Santa's Grotto at Tam O'Shanter 11th Dec.
by Greenwood
29th Nov 2016 1:44pm
News : New Topics
Pensby Hotel
by granny
29th Nov 2016 6:39pm
Paul Nuttall Elected UKIP leader
by granny
28th Nov 2016 12:03pm
Disgusting surely not legal creamfields noise !!@
by svenlock68
27th Nov 2016 8:25am
Paying for EU Citizenship (Poll)
by diggingdeeper
26th Nov 2016 12:35pm
Footballers--Abused
by fish5133
25th Nov 2016 3:46pm
New Enthusiast Forums
54 plate renault clio 3rd brake light
by Mike72
1st Dec 2016 12:52pm
Raspberry Pi in the classroom!
by FelixCowden
30th Nov 2016 9:27pm
crop loss & water rationing in Dominican Republic
by FelixCowden
30th Nov 2016 8:46pm
PC Repair needed
by TudorBlue
29th Nov 2016 2:54pm
Sports Personality Of The Year
by fish5133
29th Nov 2016 12:32am
(Views 24hrs)Trending Newest Topics
HMT Lancastria 204
Name help 174
Lib/dems rule the day 34
Wirral Sunrise Sunset
Sunrise Sat 8:09am
Sunset Sat 3:55pm
Local Time Sat 7:40pm
WikiWirral Can . . . .