[Swansea Hackspace] LEDs strip lighting

Tue Oct 14 22:20:21 BST 2014

Okay - thanks for all the comments and guidance.

In terms of the kit I would need to purchase, I think I need:

- Powersupply to connect to the mains -
- LED driver to connect the lights to the Powersupply - (or this all-in-one
PSU and Driver) http://www.mr-resistor.co.uk/item.aspx?i=11854
- RF remote controller to dim the lights (and change colour if I go RGB LED
strips) - http://www.mr-resistor.co.uk/item.aspx?i=11855
- LED strip lights (11ft lengths of -
http://www.mr-resistor.co.uk/item.aspx?i=11850

Is that it? And what 'ratings' or sizes should I be looking out for...?

And...are there any 'reliable' sources you would suggest I go and look at
to build my shopping list (apart from Mr Resistor!).

Thanks all,

Richard

On 10 October 2014 14:05, Emyr Morris <em at preseli.com> wrote:

> other consideration is the number of LEDs per meter - if you want to
> consume less power then getting a strip with a lower LED count would save
> power - the trade off would be less light.
>
> Most LED bulbs will have some form of lens to direct the light to an area
> - those LED strips are just that, strips of LEDs with no lens.
>
> I feel their use is best suited to decoration - put a strip behind the
> frame of a painting, above a shelf to light your trinkets below it etc
> rather than lighting a room to a comfortable level of lighting (say to read
> a book) - as a migraine sufferer I wouldn't enjoy sitting in your
> conservatory if you had enough of those strips to light your 'room' without
> any other form of lighting
>
> On 10 October 2014 12:12, Gerrit Niezen <gerrit.niezen at gmail.com> wrote:
>
>> Hi Richard,
>>
>> - The strip you linked to claims 7.2W/m. It’s not clear whether that is
>> the consumption at full (white) brightness.
>> - The white LED strip Ceri linked to claims 0.35W/LED (at full
>> brightness) x 36 LEDs/0.5m x 2  = 25.2W/m
>> - The 60 RGB LEDs/m strip I linked to claims 18W/m (at full brightness)
>>
>> This is still lower than incandescent (60W) and halogen (43W) bulbs.
>> However, I’m thinking you won’t be content with just a 1m strip ;)
>>
>> Cheers,
>> Gerrit
>>
>> PS - Ceri brings up an interesting point regarding colour temperature
>> (listed in Kelvin, not to be confused with the actual temperature of the
>> LED): Some LEDs produce a cooler, more “energising” white, while other
>> produce a warmer, “cosier” light
>>
>>
>> On 10 Oct 2014, at 11:44, Richard Morgan <richard.morgan at avocation.co.uk>
>> wrote:
>>
>> Thanks Gerit,
>> Talking of the power needs then....I was thinking LEDs would be more cost
>> effective than halogen lighting. And given we're going into the 'darker'
>> months, these will be on for probably 5-6hrs a night every day...
>>
>> Does the fact that I'm looking at going for so many LEDs on strip
>> lighting negate that argument?
>>
>> The 'low profile' of these in that they can just be attached to the
>> existing beams with minimal screwing/drilling, and the lighting coverage
>> and colours/dimming will likely still win the day though.
>>
>>
>>
>> On 10 October 2014 10:10, Gerrit Niezen <gerrit.niezen at gmail.com> wrote:
>>
>>> The RGB LED light strip that I demoed at the first technical meeting
>>> back in April 2013 (http://swansea.hackspace.org.uk/Meetings/20130422)
>>> had 60 LEDs/metre (the slides at that link has all the details).
>>>
>>> I bought them from Adafruit (http://www.adafruit.com/products/1138) and
>>> just noticed you can now buy a mind-boggling 144 LEDs/metre strip (
>>> http://www.adafruit.com/products/1507). It does pull 7A at 5V though.
>>>
>>> Richard, the design of that remote control you linked to looks like a
>>> bit of a rip-off of the Philips LivingColors remote control from 2010:
>>>
>>> http://www.core77.com/blog/featured_items/neocon_2010_video_control_the_color_of_your_room_by_remote__16745.asp
>>>
>>> Philips has been improving on that design in the past 4 years:
>>> http://www.philips.co.uk/c-p/6916431PH/livingcolors
>>>
>>> Keep in mind that when using RGB LED light strips, the three LEDs are
>>> turned up to full brightness to give you a white colour, which consumes the
>>> most power.
>>>
>>> Cheers,
>>> Gerrit
>>>
>>>
>>> On 10 Oct 2014, at 09:43, Ceri Clatworthy <ceri.clatworthy at gmail.com>
>>> wrote:
>>>
>>> I got this:
>>>
>>> http://www.banggood.com/LED-Rigid-Strip-Light-50cm-12V-36-SMD-7020-U-Shape-White-p-909736.html
>>>
>>> from china.
>>>
>>>
>>> Beautiful clean white (not warm white)
>>>
>>> very bright, but they do run warm, but not hot.
>>>
>>> If i remember will bring one tomorrow !!!
>>>
>>> Ceri
>>>
>>> On Fri, Oct 10, 2014 at 9:26 AM, Graham Owens <
>>> grahamowensuk at googlemail.com> wrote:
>>>
>>>> My father in law has done exactly this, but i am unable to confirm what
>>>> brand he used etc at the moment?  but he regularly tells my wife how bright
>>>> it is (apparently green is much brighter than the others, i spend my time
>>>> making postulations that it is an illusion and their eyes are just more
>>>> sensitive to green light <338.gif>)
>>>>
>>>> Graham
>>>>
>>>> On 10 October 2014 09:18, Richard Morgan <
>>>> richard.morgan at avocation.co.uk> wrote:
>>>>
>>>>> I have a conservatory that requires lighting - it's a bit dark in
>>>>> these Winter months.
>>>>>
>>>>> I'm looking to put LED strips across the roof beams and was wondering
>>>>> about using LED strips but not sure how much light they would give off at a
>>>>> distance though. I also like the RF controller idea for running them and
>>>>> changing brightness / colours...
>>>>>
>>>>> It's about 8.5ft high at the mid-point and I would likely run these up
>>>>> the diagonal beams - about 11ft in length.
>>>>>
>>>>>
>>>>> http://www.simplelighting.co.uk/products/2M,-Colour-Changing-RGB-30-LED-Tape-kit.html?gclid=Cj0KEQjwh96hBRCnsefbvZrKrpcBEiQAF7oMdOySrl94A5MYfcfSsRcnOaTB2iNcbVePy3vAJYcR1FMaAqHp8P8HAQ
>>>>>
>>>>> We would mostly be using the white colour but the option to change it
>>>>> for kids parties etc would be cool.
>>>>>
>>>>> Is this a dumb idea? Would they give off enough light at that distance?
>>>>>
>>>>> All suggestions very gratefully received....
>>>>>
>>>>>
>>>>> --
>>>>> Kind regards,
>>>>>
>>>>> Richard
>>>>>
>>>>> _______________________________________________
>>>>> Hackspace mailing list
>>>>> Hackspace at swansea.hackspace.org.uk
>>>>> http://swansea.hackspace.org.uk/mailman/listinfo/hackspace
>>>>>
>>>>>
>>>>
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>>
>>
>> --
>> Kind regards,
>>
>> Richard
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>
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-- 
Kind regards,

Richard
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