not motorhome related but LED related

Discussion in 'Tech/Mech General' started by Jaws, Aug 7, 2016.

  1. Jaws

    Jaws Funster Life Member

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    I am looking to replace some 5ft fluorescent fittings with an LED equivalent
    The current ones are rated at 60w with the light output you would expect

    I am looking for strip LED fittings that will give at least equivalent light output and have a similar housing ( so as not to have to redo the whole ceiling again :) )

    Anyone have any suggestions ?
     
  2. olley

    olley Funster

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  3. Jaws

    Jaws Funster Life Member

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    Cheers Oiley,
    And that really emphasises the problem !
    There are SO many options available. I am really looking for definitive answer as to what equals a standard 65w unit :)
     
  4. Jaws

    Jaws Funster Life Member

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    A more precise question..
    I can find the lumen output and colour temperature of the LED jobbies, but not of the old fluorescent fittings..
    So I am after the figures for the old units so I can match them with the new LED ones ( if you see what I mean :) )
     
  5. Boringfrog

    Boringfrog Funster

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  6. Boringfrog

    Boringfrog Funster

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  7. Jaws

    Jaws Funster Life Member

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    A very useful site B F, but again no figures given for the standard 60w fluorescent .. Just about everything else mind you LOL !!
     
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  8. tonyidle

    tonyidle Funster

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    The info is under each tube in Oileys link. Possibly a bit approximate though.
     
  9. Borderland

    Borderland Funster

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    In the link given by Olley is says that the 5ft led tube is equivalent to a 58W fluorescent. Is this the information you are after.
     
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  10. mitzimad

    mitzimad Funster

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    probably no help at all but i replaced the 2x300m mm flourescents in the van with four strips stick on of led the same length and the leds are brighter
     
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  11. Jaws

    Jaws Funster Life Member

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    Not exactly but I think it is about as close as I am gonna get to be honest ! :)
    I will have to take a stab at the colour temperature of a standard tube..
     
  12. Jaws

    Jaws Funster Life Member

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    Think I may have found it !! 3500k seems to be the standard..
    Now I have all the info needed :)
    Thanks to everyone for the input.. greatly appreciated :)
     
  13. pappajohn

    pappajohn Funster Life Member

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    There is no direct wattage comparison for LED/fluorescent.
    A regular 60w filament bulbs LED equivalent could be 4w, 5w, 6.5w...DEPENDING on chip type and quality of manufacture.
     
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  14. TheBig1

    TheBig1 Funster Life Member

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    we just had a load of fittings changed at our church. the sparky said that the old ones were about 3500k equivalent but recommended 4500k, with an option of even brighter. pleased we chose the 4500k as they really improved the overall light level
     
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  15. bubble63

    bubble63 Funster

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    Just a point of order john
    Why do you want to match the fluorescent colour, why not pick a temperature that suits the room use best
    I find fluorescence colours a bit harsh
     
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  16. Jaws

    Jaws Funster Life Member

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    I have decided to go LED as at least one ( if not all ) of the units in the kitchen is on from the moment we get up until late in the evening
    Woman is always whinging about any change to lighting so it is important I get as close to 'normal strip light ambiance as possible
     
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  17. Minxy Girl

    Minxy Girl Funster Life Member

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    I always thought fluorescent lamps were efficient power-wise anyway, are LEDs that much better?
     
  18. Robin McHood

    Robin McHood Funster

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    @Jaws you may already know this but the larger the Kelvin number the 'cooler' or the closer to daylight the light, the lower the number the closer to a filament lamp it gets. We tend to use Colour 840 or Phillips 840 en masse on board. They have a colour of 4000K which is a "coolish warm" light in Phillips paralance and seems to strike a decent balance between colour rendition and harshness
    The old standard for fluoros was a colour 35 which was at 3500K and referred to as white though most people associate that with 'them orrible fluorescents'
    Its only recently LEDs were able to get to the lower warm Kelvin numbers usually by mixing in yellow or red led chips. I've got 2700k ones in the house and moho & SWMBO tolerates those as being close to the old filament lamp colour.
     
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  19. Robin McHood

    Robin McHood Funster

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    In a word Yes. Fluoros arent bad compared to filament lamps or halogens but LEDs are 10 times more efficient generally speaking and have a much longer life. They do have problems , our kitchen has T-H fittings and Leds just dont work as the fitting is designed to use the backscatter light from the backside of the TH spots and LEDs dont have any. They also produce a much sharper cut-off so the shadows can be in high contrast to illuminated areas..
     
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  20. Robin McHood

    Robin McHood Funster

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