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  • #1816536
    tomdenne
    tomdenne
    Participant
    Joined: 29 Oct 2008
    Location: 58 La Nièvre
    Total posts: 4459

    Is there any point in buying led security floodlights? We have three 300w halogen pir lamps over various entry doors which switch on for only about five minutes, so the electricity saving with leds would be negligible.

    However, they are not very durable. The bulbs fairly frequently blow and the electrics tend to fail; one has just decided to stay on all the time. Would led lamps, being less stressed, be more reliable? Would they be worth the extra expense?


    Tom

    • This topic was modified 20 Dec 2017 18:21 by  Char.
    #1816537
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    mikej
    Participant
    Joined: 21 Jun 2011
    Location: Dordogne sometimes and Kent the rest
    Total posts: 5287

    Tom

    I don’t know about the floodlights, but the tungsten clear ES bulbs I used to have in the lounge (UK), ten of them, I replaced with LED’s two years ago, I have only had to replace one, prior to that I used to buy them at least twice a year in packs of 24’s, same with the Halogen recessed spots in the dining room and kitchen, I converted the spots to GU10 and I have not replaced any in over one year, they certainly do seem to live up to the hype on longevity.

    In France I have all LED lights and have not had to replace any in the last four years.

    Mike


    WFIPFLL

    #1816538
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    fittersmate
    Participant
    Joined: 08 Jun 2009
    Location: Brittany France dept 56
    Total posts: 1624

    I have both sorts – but all the halogen bulbs have been replaced with the low consumption mini-flourescent bulbs and have recently fitted an led PIR flood to replace a fitting that started staying on in the day etc.

    The mini- flourescents are a bit of a mixture, some take a minute or two to warm-up, some don’t.

    The one pir led flood is very bright, starts instantly, no warm-up etc.

    Can’t really comment on the consumption, but as there are a lot of feral cats about our place the PIR’s are triggered quite often at night so I will probably replace the existing fittings with LED as and when they cr*p out.

    Adi have the led fittings from time to time.


    #1816543
    loopski
    loopski
    Blocked
    Joined: 23 Jan 2013
    Location: deux sèvres
    Total posts: 9778

    A PIR proximity sensor can be purchased and easily replaced. I use LED either where on for long periods or independent with photo electric charging.


    I would lie on top of the stairs and smell the cigar smoke of Castro.

    #1816544
    le-dolly
    le-dolly
    Participant
    Joined: 16 Nov 2009
    Location: La Souterraine-23 Depuis sept 2005
    Total posts: 1230

    It should also be considered that LED ampoules are also subject to a limited number of on/off motions, possibly important when placed in fittings with automatic switching set for short and frequent periods.


    Le-Dolly ( . )( . ) http://www.pink-electrique.fr

    #1816546
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    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    I bought some cheap complete LED PIR floodlights these have the leds soldered to the circuit board and heat sink so cannot be compared with an LED bulb conversion.

    All 3 have been very reliable (one is non PIR dusk-dawn timed) to my great surprise because PIR unreliable floods have been the bain of my life, customers would often insist on me fitting one as part of the burglar alarm job, in that case I would supply and fit the light for free and tell them when, not if, it went wrong not to call me, of course they still did!

    I have used 7 watt LED downlights in the flats again complete units and not bulb conversions, I have had a lot of failures on the initial batch of 84 due to a bad heat sink design, the individual leds are in a series circuit so when one blows they all go out, I cannabilise one dead unit to repair 6 others and do them in batches.

    Knowing that heat dissipation was the cause (most fail in July and August) even though the heatsinks are cooler than body temperature I didnt hold out much hope for the GU10 led bulbs I used to replace the halogen ones in the celing spots of the loft apartments, a lot of circuitry in a small package and no room for a heat sink, they however have been to date 100% reliable.

    Getting back to the OP for my money I would try perhaps one cheap LED bulb conversion but consider a new complete LED PIR unit.


    #1816547
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    teapot
    Participant
    Joined: 10 Jul 2008
    Location: Tours
    Total posts: 2372

    I have fitted outdoor LED flood lamps to car parks (300W) and to small walkways on residential developments 10w, 20w,30w, 50w and 100w. Only one LED driver failure on the 100w ones and that was easily replaced so the unit went on. One 100w COB chip failure to, again replaced cheaply and a bit of thermal paste.

    LED are semi conductors so they are happy being switched on and off multiple times, halogen etc not so. Energy saving is as good you expect for led, it’s all good and I don’t get called back to erect scaffold to change halogen/tungsten/sodium lamps.


    Raising the standards of swimming pool knowledge and technology.

    #1816548
    Avatar
    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    It should also be considered that LED ampoules are also subject to a limited number of on/off motions, possibly important when placed in fittings with automatic switching set for short and frequent periods.

    <hr>
    Le-Dolly ( . )( . ) http://www.pink-electrique.fr

    I have not found that to be a problem yet but in my stairwell I have automatic lighting triggered by movement detectors on all 3 levels switching 4 light units, 3 of which have flouro-compact bulbs and one a traditional incandescent bulb because without it the control current for the movement detectors cause the CFL’s to flicker.

    The stairs serve 6 apartments and there are people up and down all day long including myself doing the cleaning and changeovers etc, the compact flourescents fail regularly, I doubt that they aver last 6 months yet the incandescent bulb is still the original one fitted 7 years ago.

    So much for long life bulbs :sad:


    #1816553
    loopski
    loopski
    Blocked
    Joined: 23 Jan 2013
    Location: deux sèvres
    Total posts: 9778

    Halogen floods with or without a PIR ars a couple of euros at carboots because people are replacing them with LEDs. Frequently the only thing wrong is the PIR sensor. These cost around €3 shipped free from China, so I usually keep a couple on hand.
    Although the halogen flood can be connected without concern, the PIR must be connected correctly to Phase and Neutral.


    I would lie on top of the stairs and smell the cigar smoke of Castro.

    #1816563
    tomdenne
    tomdenne
    Participant
    Joined: 29 Oct 2008
    Location: 58 La Nièvre
    Total posts: 4459

    :grin: Thanks for all your advice. I’ll get some led lamps. Been trawling the net and these seem to be reasonable, unless anyone has found better. https://www.amazon.fr/Ustellar-Projecteur-D%C3%A9tecteur-Mouvement-Ext%C3%A9rieur/dp/B06XHRBL51/ref=cm_cr_arp_d_product_top?ie=UTF8


    Tom

    #1816564
    Avatar
    Chanceux
    Participant
    Joined: 17 Mar 2010
    Location: Picardie
    Total posts: 13130

    A good price and good reviews, if you want a real bright floodlight then thats the one, if you want something less security looking and more for lighting the way like I did then this is what I used, was cheap in its day but I’m sure you could get them now for half that with free delivery from China.

    Incredible light output from such a low wattage and really good reviews.


    #1816565
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    teapot
    Participant
    Joined: 10 Jul 2008
    Location: Tours
    Total posts: 2372

    :grin: Thanks for all your advice. I’ll get some led lamps. Been trawling the net and these seem to be reasonable, unless anyone has found better. https://www.amazon.fr/Ustellar-Projecteur-D%C3%A9tecteur-Mouvement-Ext%C3%A9rieur/dp/B06XHRBL51/ref=cm_cr_arp_d_product_top?ie=UTF8

    <hr />

    Tom

    Yep they’ll do the trick, On my work lights I have removed the dangerous and short lived halogens and replaced with similar to these, if you want a really good light output similar to your old halogens.

    https://www.amazon.co.uk/Dimmable-118mm-Halogen-Double-Replacement/dp/B0727W6BD7/ref=sr_1_5?s=lighting&ie=UTF8&qid=1513529773&sr=1-5&refinements=p_n_feature_three_browse-bin%3A250344031


    Raising the standards of swimming pool knowledge and technology.

    #1816566
    dantheman
    dantheman
    Participant
    Joined: 16 Nov 2014
    Location: France
    Total posts: 2283

    A good price and good reviews, if you want a real bright floodlight then thats the one, if you want something less security looking and more for lighting the way like I did then this is what I used, was cheap in its day but I’m sure you could get them now for half that with free delivery from China.

    Incredible light output from such a low wattage and really good reviews.

    <hr>

    Did you forget the link?


    #1816568
    tomdenne
    tomdenne
    Participant
    Joined: 29 Oct 2008
    Location: 58 La Nièvre
    Total posts: 4459

    Thanks again for all your advice. I scrambled up the ladder this afternoon and found the pir had packed up and was permanently on. Removed the halogen lamp and discovered the ceramic insulation at one end had reduced itself to powder. As teapot says, those pencil bulbs really don’t seem to last long at all.

    Have ordered the led lamps on the link I posted along with 2 exterior waterproof cable connectors for €6 because the new lamps are sealed. Amazon have combined the orders so only one p&p charge of €4.


    Tom

    #1816571
    vic evans
    vic evans
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    Joined: 25 Apr 2015
    Location: Brittany 29
    Total posts: 4066

    Raising the standards of swimming pool knowledge and technology.

    Who or what is? :unsure:


    The power of accurate observation is commonly called cynicism by those who have not got it.

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