[sudo-discuss] lighting options

[Patrik D'haeseleer]

Excellent. Did you ever get those RGB strip lights to light up? We could
always try to use those to modulate the light quality in the rest of the
hall.

Patrik
On Mar 21, 2015 5:17 PM, "Jake" <jake at spaz.org> wrote:

> I got a 66% refund from Aliexpress after sending pictures of voltmeter,
> ammeter, and LEDs proving that they're 5.5 watts instead of "16-20" watts
>
> so i spent the money on "10 watt" white LEDs from electronic goldmine,
> three for $12, i got 12 of them which should be enough to replace an entire
> overhead fixture in sudoroom with them - and have lots more light with
> slightly less power.
>
> i don't know whether they're hot or cold white.
>
> On Wed, 11 Mar 2015, Patrik D'haeseleer wrote:
>
>  Bummer! I noticed some comments that were complaining about the wattage
>> as well. One comment mentioned the 9W version is only 3W. I suspect many
>> people don't even
>> bother checking the specs...
>>
>> My 10W LED strips from Electronic Goldmine should get here by tomorrow -
>> hopefully we'll have a bit more luck with those. Did anyone else put in an
>> order as well?
>> Unfortunately, they've now gone back up from their 1-day-sale price of $4
>> to their usual price of $14 a piece.
>>
>> Patrik
>>
>> On Wed, Mar 11, 2015 at 4:58 PM, Jake <jake at spaz.org> wrote:
>>       I received the lights linked below, and they were only 5.5 watts
>> instead of "16-20 watts" so i opened a dispute and asked for 66% of my our
>> money back.
>>
>>       Anyway, we now have eight highly directional LED lights, four warm
>> and four cold, 5.5 watts each.
>>
>>       -jake
>>
>>             On Sun, Feb 15, 2015 at 1:17 AM, Jake <jake at spaz.org> wrote:
>>
>>                   I looked on Ali Express and sorted by customer
>> satisfaction, looking for LED lighting in "downlights" which suggests
>>                   lamps shining downward?
>>
>>                   these look good but the seller rating is only 97.4%:
>>
>>             http://www.aliexpress.com/item/High-Quality-Aluminum-9W-
>> 15W-21W-27W-45W-LED-Downlight-Ceiling-lights-lamp-AC85-265V-
>> With/2027740342.html
>>
>>                   they seem to be "16 to 21" watts for $6.95 including
>> shipping.  They offer "warm" and "cold" flavors so we could just get a mix
>> of the
>>             two kinds, for
>>                   something in the middle when they're all on.
>>
>>                   here is the search i was doing:
>>
>>                   http://www.aliexpress.com/category/200002289/led-
>> downlights.html?site=glo&isrefine=y&shipCountry=US&
>> SortType=total_weight_score_desc
>>
>>                   this one is also a good price, and the seller rating is
>> higher (98.1%)
>>                   http://www.aliexpress.com/item/21W-Antifogging-Epistar-
>> led-downlight-AC85-265V-Contains-the-drive-power-free-
>> shipping/2047334906.html
>>
>>                   ultimately i have higher confidence in the quality of
>> something we buy from Cree at Home Despot, but I think we should give China
>> a
>>             chance and buy a few
>>                   of the "16 to 21 watt" ones and see how they compare.
>>
>>                   For reference, Cree (a reputable company) and other LED
>> bulbs sold at Home Despot are called "60 watt replacement" bulbs while
>>             actually using 9 to 11
>>                   watts.  The light fixtures presently in Sudoroom and
>> CCL each have two 75-watt flourescent bulbs, for a total of 900 watts of
>> light in
>>             the bocce ball
>>                   room when they're all working.
>>
>>                   That suggests that 150 watts of LED lighting would be
>> equivalent, which would cost about $60 from the first aliexpress link i
>>             provided.
>>
>>                   These lights just have wires coming out, so we would
>> perhaps attach them onto the metal structures that are presently holding
>>             flourescent lights for
>>                   simplicity, until we come up with something better.
>>
>>                   -jake
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>>
>>
>>
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>>
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