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Search: Posts Made By: AC_Hacker
Forum: Lighting 10-28-14, 01:42 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
It's not clear how you are current-limiting the...

It's not clear how you are current-limiting the power to your LED light(s).

-AC
Forum: Lighting 10-28-14, 12:51 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
It's not clear how you are current-limiting the...

It's not clear how you are current-limiting the power to your light(s).

-AC
Forum: Lighting 06-29-14, 11:31 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
If I'm not mistaken JB Weld has bits of metal...

If I'm not mistaken JB Weld has bits of metal dust in the epoxy mix. What with you being a machinist and all, if you don't already have metal dust, you could whip some up pretty quick.

I bet...
Forum: Lighting 04-01-14, 09:51 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Transformers or Switchers??

Randen,

I have quite a few LEDs around the house and I think they are just great!

I have at the same time been seriously going through all of my wall-wart power supplies and getting rid of the...
Forum: Lighting 12-05-13, 02:12 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
You said that these bulbs are bright white, is...

You said that these bulbs are bright white, is that right?

I see some being sold as:

2700K to 3200K (warm white)
4000K to 4500K (natural white)
5700K to 6500K (cool white)


Which kind...
Forum: Lighting 08-11-13, 04:39 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Ikea switching to all LED lighting products by 2016

I was leafing through the new Ikea catalog, and found this statement:



This should have a very favorable effect on the price of LED lighting. Since Ikea sells so many units, the effect on...
Forum: Lighting 08-08-13, 10:06 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
I bought quite a few LED bulbs from China also,...

I bought quite a few LED bulbs from China also, and the price and promise of long life were definite selling points.

However, the mortality rate of the LED bulbs I got has not been a confidence...
Forum: Lighting 08-07-13, 02:46 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Where did this perfectly good thread about using...

Where did this perfectly good thread about using LED lighting, go so terribly off track?

-AC
Forum: Lighting 12-31-12, 01:53 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Turning the Best Attribute of Each Type of Light to Your Benefit

LED lighting expensive, but if you get them straight from China via ebay, they're more reasonable. I did that, and although the infant mortality rate was fairly high (15% within a month), it was...
Forum: Lighting 09-26-12, 12:38 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Why don't you do a break-even analysis? ... (LINK...

Why don't you do a break-even analysis? ... (LINK HERE (http://www.google.com/search?client=opera&rls=en&q=how+to+do+a+break+even+analysis&sourceid=opera&ie=utf-8&oe=utf-8&channel=suggest))

-AC
Forum: Lighting 07-13-12, 08:41 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
ebay Chinese LED bulbs

I bought about a dozen LED bulbs from several different suppliers and they all shipped from China.

They all worked when I got them. I did have some minor problems like a decorative ring fell off...
Forum: Lighting 07-02-12, 09:38 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
There are several sellers of LED bulbs on ebay,...

There are several sellers of LED bulbs on ebay, each selling more than one kind of LED bulb.

Providing a link would be helpful.

-AC
Forum: Lighting 06-07-12, 02:01 PM
Replies: 157
Views: 48,321
Posted By AC_Hacker
At this point in the development of lighting...

At this point in the development of lighting technology, this is true, CLFs do produce more light (by a smallish margin) than LEDs. However, LEDs usually have small lenses build into the LED or used...
Forum: Lighting 11-09-10, 12:23 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
Light Where You Want It...

I actually talked about this very issue with a lighting engineer (there really is such a thing), while waiting for a plane to Brazil...

He said he was designing lighting systems for large public...
Forum: Lighting 09-16-10, 12:15 AM
Replies: 157
Views: 48,321
Posted By AC_Hacker
How I use LED lighting...

I'm using LED lights as magnetic-base task lights for my milling machine and for my lathe. The light is a great color and so specific that I can easily see every little chip and scratch mark. As a...
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