[Shop-talk] led tubes and short memory
Bob Spidell
bspidell at comcast.net
Tue Jan 11 09:44:09 MST 2022
I thought I had it figured out, but what's the difference in designation
between older tubes with 2 small prongs on one end, and the newer style
with one fat prong? It seems they're both called 'TX,' with 'X' being 8,
12, etc.
https://www.amazon.com/gp/product/B074M8KCJ1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
vs.
https://www.amazon.com/gp/product/B074MC1FW3/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
On 1/11/2022 4:57 AM, old dirtbeard wrote:
> The primary advantage of converting an existing fluorescent fixture to
> LED is that it is already there, wired, has the sockets, etc.
>
> I converted all of the 8' fluorescent lights in my garage years ago
> from magnetic ballast to electronic ballast and it was a good
> investment for me at the time (used less power, lights started faster,
> there was less flicker, less noise, worked better in the cold, erc.).
>
> A couple years ago I converted all of them again to LED bulbs by just
> removing the electronic ballasts and inserting 8' LED bulbs for all
> the reasons previously stated. I gave all of the electronic ballasts
> to a friend who was still using fluorescent 8' tubes with magnetic
> ballasts. These are the bulbs I used and I am completely satisfied
> with them:
> https://www.amazon.com/gp/product/B074MC1FW3/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
> <https://www.amazon.com/gp/product/B074MC1FW3/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1>
>
> You do not need to remove the ballast, just wire the sockets directly
> to the 110VAC lines. It could not be easier.
>
> Here are 4' LED bulbs that I used for some other locations around the
> house in the existing fluorescent sockets for the same reasons:
> https://www.amazon.com/gp/product/B074M8KCJ1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
> <https://www.amazon.com/gp/product/B074M8KCJ1/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1>
>
> Again, the primary reason for using the replacement LEDs is that you
> only have to change the bulbs and bypass the ballast. It is really
> easy to do and the technology is the same. You are just reusing the
> existing mounts.
>
> If I were starting fresh, from scratch, yes, I would just use the
> direct mount LEDs that Mark is advocating. There is no need for the
> reflectors as the LED lights do not emit 360 degree light, they can be
> purchased in 90 degree or 120 degree spread if you desire.
>
> best,
> doug
>
>
> On Mon, Jan 10, 2022 at 9:42 PM Mark Andy <marka at maracing.com> wrote:
>
>
> Howdy,
>
> They come with clips that you can screw to the ceiling. There's
> no fixture. I don't know that a fixture would help in any event,
> since the LEDs are all surface mounted, so they wouldn't throw
> light up toward the ceiling in any event.
>
> You all should do whatever you like, but after using both these as
> well as fluorescents, there's no way I would use a fluorescent
> fixture. I might compare other LED solutions, but if they cost
> significantly more than these, I wouldn't bother. I've been
> nothing but impressed / happy with them.
>
> Mark
>
> On Mon, Jan 10, 2022 at 7:14 PM Bob Spidell <bspidell at comcast.net>
> wrote:
>
> A quick glance doesn't show how they're mounted; anyone know?
> Seems like you'd still want a fixture to reflect light.
>
>
> On 1/10/2022 1:42 PM, Mark Andy wrote:
>> Howdy,
>>
>> If I were doing this, I would pretty much just throw away the
>> existing stuff and put up these:
>>
>> https://www.amazon.com/Barrina-8500LM-Daylight-Output-Linkable/dp/B07RKZFD5Z/ref=sr_1_2_sspa
>>
>> I have a shop that was built around 7 years ago and stuff
>> like this wasn't available at this cost, so I went with 4
>> tube fluorescent fixtures. They've been "fine", but when I
>> redid our daily driver parking garage last year I used the
>> Barrina lights. Super easy, nice bright light, and pretty
>> cheap. Absolutely no question that's what I'd do if I were
>> redoing the shop / what I will do when the time comes when
>> the existing fluorescents die.
>>
>> YMMV.
>>
>> Mark
>>
>> On Mon, Jan 10, 2022 at 3:08 PM Bob Spidell
>> <bspidell at comcast.net> wrote:
>>
>> Since I was already 'LED curious,' I did a bit of research:
>>
>> - there are some LED tubes that require a ballast* ('Type A')
>> - there are some LED tubes that require bypassing of the
>> ballast ('Type B')
>> - there are some LED tubes that work with ballast or
>> without/bypassing, with some rewiring* ('Type A+B')
>>
>>
>> If you want the least (initial) hassle, and have 'fresh'
>> ballasts--they all fail, eventually--you can plug and
>> play the 'A+B' type with a ballast then, when the ballast
>> fails you can bypass it, which requires some rewiring
>> (apparently, you can leave the dead ballast in place).
>>
>>
>> * Need to check compatibility between tube and ballast.
>>
>>
>> On 1/10/2022 10:48 AM, Ian McFetridge wrote:
>>> I used the Feit replacement LED tubes, it sounds like
>>> they are similar. Here are the instructions for the
>>> Feit, maybe that will help?
>>> https://www.feit.com/wp-content/uploads/2019/10/T4815_850_AB_LED_10_MANUAL_051019.pdf
>>>
>>> Best,
>>> Ian
>>>
>>> On Mon, Jan 10, 2022 at 12:12 PM john niolon
>>> <jniolon at att.net> wrote:
>>>
>>> Couple of years ago I bought a box of Utilitech
>>> t81636f16-40...4' led tubes...redid all my shop
>>> lights and was pleased with them
>>> now I want to add some fixtures in another part of
>>> shop and my memory has failed... I know I had to
>>> rewire fixtures to make them work
>>> but can remember what I did and instruction sheet is
>>> long gone or lost...
>>> Utilititech was a Lowes brand and now discontinued
>>> and Utilitech web site is a joke anyone tell me
>>> how to wire these bulbs up either with or
>>> without ballast..,....seems I remember they were non
>>> shunted bulbs...but now sure
>>> thanks
>>> john
>>>
>>
>>
>
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