On Friday, December 9, 2016 at 1:06:44 PM UTC-5, Stormin' Norman wrote:
On Fri, 9 Dec 2016 08:21:52 -0800 (PST), DerbyDad03
wrote:

On Friday, December 9, 2016 at 10:18:07 AM UTC-5, Stormin' Norman wrote:
On Thu, 8 Dec 2016 12:44:48 -0800 (PST), DerbyDad03
wrote:

Instead of buying a $20 ballast, why not use direct wire LED's? Two 4' T8

I want to thank you for mentioning these as I didn't know they were
available. I just ordered 40 tubes through Amazon for my Workshop /
Barn / Stable.

This is what I purchased:

http://amzn.to/2h5hwDj

You are aware that you now have to rewire 20 fixtures to bypass the
ballasts, right?

10 fixtures, they are four tubes each. The ballasts are old and I
want them out anyway. I have a lift and a great grandson who loves
electrical and electronic work. The fixtures are suspended from
chains and hooks so, we will take them down and do them on the bench.


You also have to make sure that you don't have shunted tombstones. If you
do, you may need to swap them out for non-shunted varieties. The tubes I
bought from EarthLed will not work with shunted tombstones.

The tubes work with either style tombstone, I checked that as part of
my pre-purchase evaluation. Doesn't really matter as I have several
boxes of replacements of both styles.

That's probably because they are Dual-End Powered. The ones I ordered are
single end powered so shunted tombstones won't work.


See he

https://www.earthled.com/blogs/led-l...nted-tombstone

Just as an aside, would I have ordered 40 bulbs in one shot without testing
a couple to see if I like the light? Nope. I ordered 2 from EarthLed to test
in one fixture.

Call me wild and crazy. I know what 6000k light looks like and if I
they are not as represented, I can send them back for free with
Amazon. Easy peasy. At my age, it is less than wise to wait for
anything.

Your response is in the middle of my comments, but I did use the words
"like the *light*" so I can understand why you answered the way you did.

My next paragraph (below) details the issue I was really talking about
when I said "like the light". It was related to lumens, not CCT.

(more on that below)



A few months ago I purchased a 4' LED shop light fixture for my garage and
it is a lot brighter than the standard florescent it replaced. Almost too
bright. I don't know if I would want my entire shop lit with the same
fixtures, thus my desire to test a couple of the LED tubes in my shop first.
I'll do the fixture over a workbench where more light would be a good idea,
but I may not do the main floor space, at least not all of it.


I have the fixtures wired with a dual switch, I can energize either 2
tubes or 4 tubes in all of the fixtures depending upon what I want to
do. I almost always find I don't have enough light.

I don't know what you are replacing, and I'm still learning about LED
replacements, but this is my understanding:

It looks like the bulbs you ordered are 2400 lumens. A 32w 4'ft fluorescent
is about 2850. However, because of the directionality (all down) of the
light from an LED tube, a lower lumen LED may appear to be much brighter
than a higher lumen fluorescent. EarthLED customer service verified that
for me when I spoke to them about the 1800 lumen tubes I ordered. My guess
is that a 2400 lumen bulb would be too bright for where I want to use them. The 1800's haven't arrived yet so I'm not speaking from experience - yet.
We'll see, but that is why I want to test them I buy more. I have areas that
have different lighting needs, so they'll get put to use anyway.

As I age, I also understand the importance of task lighting more and more. ;-) I have clip-on lights above the miter saw, band saw, drill press, etc.