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Project:Light the Space: Difference between revisions
From London Hackspace Wiki
→Build vs Buy Resources
(Added costs / comparison for Osram LED T8) |
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* [http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR3.TRC1.A0.H0.Xt8+LED.TRS0&_nkw=t8+LED&_sacat=0 T8 LED Light Tubes] or [http://www.ledsave.co.uk/2400mm-8ft-t8-led-tube.html?gclid=CjwKEAjwmfKpBRC8tb3Mh5rs23ASJACWy1QPOxxDG5AgCUBUWv2AJ-Lg5VL9rH3S6QUmcVSDL6mb7RoC0tfw_wcB T8 LED Light Tubes from ledsave] are tubes that can use the same physical holders as fluorescents, but do require the removal of the fluorescent high voltage ballast as these run directly off of mains connections. (not too difficult but requires safety training and careful labelling and installation. | * [http://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p2050601.m570.l1313.TR3.TRC1.A0.H0.Xt8+LED.TRS0&_nkw=t8+LED&_sacat=0 T8 LED Light Tubes] or [http://www.ledsave.co.uk/2400mm-8ft-t8-led-tube.html?gclid=CjwKEAjwmfKpBRC8tb3Mh5rs23ASJACWy1QPOxxDG5AgCUBUWv2AJ-Lg5VL9rH3S6QUmcVSDL6mb7RoC0tfw_wcB T8 LED Light Tubes from ledsave] are tubes that can use the same physical holders as fluorescents, but do require the removal of the fluorescent high voltage ballast as these run directly off of mains connections. (not too difficult but requires safety training and careful labelling and installation. | ||
* [http://www.ebay.co.uk/itm/141546538153 Outdoor LED Floodlights] might be useful reflecting in both outdoor and ceiling-reflective environments. Might be effective with the tall ground floor ceilings as well | * [http://www.ebay.co.uk/itm/141546538153 Outdoor LED Floodlights] might be useful reflecting in both outdoor and ceiling-reflective environments. Might be effective with the tall ground floor ceilings as well | ||
* [http://www.ebay.co.uk/itm/161432722444 Bayonet Incandescent Replacements] require no wiring changes but can only be used in existing bayonet sockets | * [http://www.ebay.co.uk/itm/161432722444 Bayonet Incandescent Replacements] require no wiring changes but can only be used in existing bayonet sockets | ||
* suggest that a couple of commercial fittings be bought or borrowed for trials, I have a supplier who may be up for this. (Phil) | * suggest that a couple of commercial fittings be bought or borrowed for trials, I have a supplier who may be up for this. (Phil) | ||
* the tube replacement things are no match for properly designed luminaires and not much cheaper. (Phil) | * the tube replacement things are no match for properly designed luminaires and not much cheaper. (Phil) | ||
* I had a look at replacement tubes in B&Q. They have Osram tubes that don't require balast replacement. 5' tubes are £25 each and consume 22W with 1800lm output at 3000K. Fluorescent tubes were £9 each and consume 58W for 5200lm at 4000K. So the LEDs are 82lm/W vs 90lm/W for the fluorescents. So they're not going to pay the 2.5 x cost off, and might require extra fittings. Confirms phil's opinion. (artag) | |||
== Locations needing Improved Illumination == | == Locations needing Improved Illumination == | ||
