DIY LED Work Light (much better than halogen!)

Here are examples I took of single diode vs multi diode at Home Depot today.

This EcoSmart bulb was available a while back (one of the recommended bulbs on a thread on Autopia), but started coming as a multi diode up until I guess very recently.

EcoSmart PAR38, 5000K, Single-Diode
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This is a Philips PAR38, but only 3000K, I couldn't find any 5000K, but just an example of Multi-Diode
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I have the Utilitech bulb from Lowes, which looks like the EcoSmart..
 
I highly doubt that Ecosmart bulb only has a single LED, I think if you took that apart you would find at least as many as the Philips bulb under that lens. And I say that as someone who has taken apart a failed Ecosmart bulb (different style).
 
I highly doubt that Ecosmart bulb only has a single LED, I think if you took that apart you would find at least as many as the Philips bulb under that lens. And I say that as someone who has taken apart a failed Ecosmart bulb (different style).

That could very well be, but I think the fact the diodes are clustered closely together in the center that it forms a single source of light.
 
It is the same simple stud that is found at the top of the stand... they just added one on the bottom leg as well for lighting backdrops for photography...

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Thanks zac, I got everything except the bulbs now.
I found similar bulbs but only have 600lm, only half the spec of utilitech so I will search more.
 
Battle of the Bulbs

I bought a Utilitech and an Ecosmart bulb for comparison.

Both bulbs are Par38, 5000K, with the Utilitech rated at 1400 lumens and the EcoSmart rated at 1300 lumens.

I tested the bulbs in my garage on my black car, first without any additional light, then with the ceiling fluorescent light added, and finally with the garage door open to add some natural daylight. I also tried them in a dark room, with the light shining on the wall.

When looking at the car, if there's any difference in the amount of the light that's generated from either bulb, it was so subtle that I couldn't see it. I thought maybe one light would have more spread than the other but I couldn't detect that either. It's possible that when comparing two of the same bulbs, instead of one of each, there would be more of a noticeable difference in brightness and coverage, or that the distance of the light from the car or the angle might change the results.

It's not until I looked at the light shining on a wall that I could really see any difference between the bulbs. At a distance of 2 feet, the Utilitech appears to have a slightly brighter center, and the light appeared just a little whiter to me. I don't know if it's a result of the Utilitech having a higher lumens rating or the construction of the bulb itself, and the difference was less noticeable the further I moved the lights from the wall. I also don't know if it's a good test to compare the lights reflecting off of a flat wall to lights reflecting off of a car, but it's the only way I could see a difference.

Here are some pictures to show the faces and backs of each bulb. The Utiliitech is on the right and the EcoSmart is on the left when viewing the faces, and it's the reverse when viewing the backs. It could be that the open back design on the Utiltech helps to disburse the heat better than the closed back on the EcoSmart.




Cost is virtually the same for either bulb. There's a 2 year warranty for the Utilitech versus 5 years for the EcoSmart. Initially I was leaning towards the EcoSmart because of the warranty, but I think that the whiter light from the Utiltech might be an advantage, especially with two bulbs. I'm going to do some more testing over the next few days to see if there's a change in the results, and to wait for the spots in my eyes to clear up. :cool:

If anyone else is in the mood to compare bulbs, both packages were next to impossible to open, especially if you want to try to keep it in good condition in case of a return. I managed to get the Utilitech bulb out of the package with very little damage, but the packaging for the EcoSmart from Home Depot is destroyed. I asked someone at Home Depot about this before I bought the bulb and he said to do whatever it takes to open it, and just bring back the bulb and the packaging in pieces, if I decide to return it. They are constantly sending back bulbs and bits of packaging to the manufacturers, and maybe someday they'll get smarter and find a package that's more user friendly.

One suggestion if you use this type of stand. I find that if you turn the stand so a single leg is centered directly below the two bulbs, it seems to be more stable. You can still knock it over backwards if not careful, but I think it's less top-heavy this way.
 
Kappy--I found if you position the light stand with two legs toward the car with the third straight out the back and put a small weight (I use a sand bag, but anything would work) over the single leg to the rear the stand becomes much more stable.
 


Going to get this attachment; thanks!


Also, thanks zmcgovern45 for showing this setup as I know nothing about photography and didn't even think of using this type of equipment--just got mine put together today and love it already. Couldn't stand using halogens and the husky LEDs...

I see you're from Illinois--not sure if I met you at the recent detailing meet or not...Anyways, thanks again.

*Nice IS as well. I had a BO IS300, then went with a STI and CTS, now back with my first love: an IS--specifically IS350 F-Sport.
 
So I found 2 of these at a swap meet for $5 each and they are the perfect height. They will extend up 10" and I cut the extending legs off so it would lower the stand 2" which made it the right height.
 
Ok, I was at Home Depot last night, and I looked at one of those Philips bulbs again, and then I put it back. I did notice that the soft white version is a few dollars cheaper than the daylight one.

The soft white is not as bright and daylight looks more like sun light.
 
The soft white is not as bright and daylight looks more like sun light.

Yes, they are a different color temperature, I was just noting the price difference, not sure why that is. I believe the Cree bulbs they sell at HD in 2700K (soft white) and 5000K (daylight) are the same price.
 
Yes, they are a different color temperature, I was just noting the price difference, not sure why that is. I believe the Cree bulbs they sell at HD in 2700K (soft white) and 5000K (daylight) are the same price.

I would get the day light.
 
Yes, I think that is the consensus. My noting the price disparity was simply another method of procrastinating and not buying any bulbs.

Do you need any pics of swirls using this new setup to help motivate you into buying daytime lights?

I bought the Utilitech one.
 
Alright! I am back in town..... and although I don't have much of a practical update, I feel it necessary to share my latest and greatest.

I came back to work after globe trotting it to Washington DC (and meeting Son1c in the process), and low and behold my new light source was waiting for me. I am not sure yet how practical it will be but a lot of you were patiently waiting and PM'ing me, so here is my latest brain child.

For those that inquired, the boom I bought was $75 shipped, on my Prime account. After much research and consideration, this was the best possible option available (from load capacity to locking mechanism), that is without going way over budget.

To that boom (and possibly to my little tripod friend) I am planning on using the following 500 LED panel light which cost me right @ $119.50 delivered

Here is why I chose it:
1) 500 LED with a max 4500 Lumen of 5500K daylight power @ 30 degree flood angle.
2) 4 banks of light which are selectable and dimmable (which I may never use but.....)
3) Weight is about 5 lbs which can easily be attached to my boom (which has a 12 lbs capacity)
4) Can be mounted horizontally or vertically. Horizontal if you have the boom coming over your shoulder (working on a horizontal panel) or if you have it set on the small tripod (would need a weight at the base of the tripod to make it more stable). It can also be mounted vertically if the boom is coming perpendicular to work surface.
5) LED produce very little heat so I can have it right next to my head or the paint
6) Functional "barn doors" to focus or reflect (and to protect the light when closed)
7) Supposedly is the equivalency a 500W light source (more on that later)
8) You can add diffusion colored filter.... if you ever find a use, let me know :)
.... I am probably forgetting a couple things but....

So what came in the box? The light, the light stand attachment and a power cord.



How do the light banks work? (BTW, I did dim the light substantially to take the pictures)





Attachments?


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How will it work??? I was planning on making the update a functional one showing all kinds of comparisons but this will have to wait as I am swamped at work and this weekend will be a KILLER! I promise to update but not right away.

I normally work with some 1000W halogen lamps and it is brutal in the summer. For those not familiar with light engineering I do have to mention that even though this product claims high lumens and 500W light equivalency, you have to understand that the functional lumens decrease substantially the farther you are from your work surface. Although this light does not compare to my halogens in terms of wattage, I believe I will be greatly helped by the fact that I can have the light within 2 feet of a panel without fear of being burnts or "cooking" the paint/products........ and will be able to dim the light as needed. The biggest complaint I had with a single light source situated behind me is that my big ol' body would always get in the way of the light reflection. I've tried a headlamp but although 220 lumens is good enough for a quick inspection it does have the limitations of being attached to my head and requires the perfect position for reflection. Also as a work light, the headlamp is a little lacking in illumination.

Why did I select this light over others? I am speculating that the selectable banks will come in handy for inspection purposes. As you can imagine, this light source will reflect from multiple angles (having the light close to the panel and having alternate rows of lighted LEDs and dark LEDs.... and will be a GREAT work light (measuring 5x11"). A larger 1000LED brother is available however I fear the weight may be a hindrance in a boomed situation.

As I mentioned before this light will be great on the boom, but I anticipate that it may work as well on the small tripod light stand..... we shall see!

P.S. Before I forget, the attachment does adjust side to side 90 degrees which will come handy if the light boom is not perfectly square and you are OCD like me and want the light perfectly square
 
Holy cow that's a crazy light with the 4 rockers and the dimmer. I think you have now become the Kevin Brown of lighting, Doc.
 
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