LED Lights

[jki21]

LED lights

I currently work for a company that does architectural outdoor lighting and street lighting. Right now I'm overseeing their LED projects. As it stands there are a couple of problems when trying to integrate LED's into street lighting.

First of all we are having major overheating issues when trying to retrofit existing street lamps to make them accept LED technology. To manage overheating LED's are under driven to 1 watt per LED since LED's become more efficient with lower drive currents.
solunagreen.com
Mod note - Forget the soluna green link
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[sam31]

LED lights

We put LED lights in our recessed cans in the kitchen and dining room. Cree LR-6 lights are what we went with. As far as I have been able to find, they are the only commercially available LED lights with excellent color rendering (CRI> 90). They are expensive though - about $90 per light. There are many discussions about LED lights in the lighting section of the forum. Good luck!

[Mike90250]

Yes, what you mean is color temp, but the temp of the light.
Actually, different factories have different stardards for the color temp.
Some just use warm white, day white and cool white to define the color. Also the factory can make the kelvin according to your need. There don't seem to have a Unified stardard.

Actually, there is, it's KELVIN, and you even reference it. The "names of color" also are pretty standardized too. warm white = 2700K

[russ]

Actually the previous poster is apparently a salesman/woman that does not know what they are selling - there are reasonably well defined standards if one wants to search the net a bit.

[elisa123]

Yes, what you mean is color temp, but the temp of the light.
Actually, different factories have different stardards for the color temp.
Some just use warm white, day white and cool white to define the color. Also the factory can make the kelvin according to your need. There don't seem to have a Unified stardard.

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[bjdarko]

I think these are the values: 2,700

[Naptown]

They come in a variety of color temperatures
I believe 5300K is the color of an incandescent lamp.
Here is an explanation

http://en.wikipedia.org/wiki/Color_temperature

[bjdarko]

OK, may be you right, thanks. But do you have any suggestion for the standard?

[Naptown]

Wow 5500 degrees Celsius is hot!



I think you mean Kelvin which the color temp of light is measured.

[bjdarko]

I have been playing around with LED lighting for years now. I know the first ones were terrible very little and very blue light. I have been testing the newer bulbs using the 5050 LED chips. The light is a nice warm white without too much heat. Pulls 6 watts and has the light output of a 60 watt incandescent. Instant on with no flicker. I have 5 in a ceiling fan testing them out at this moment. Very bright, however the only downside is they don't dim very well.

Is there a standard for LED street light, I mean for temperature equivalent? Usual temp is around 5500 Celsius degrees. I can not find that standard.

[elisa123]

led light forum

Maybe this website can help you:www.chylighting.com. It's a professional led light website.

[Sunking]

Led light is vey good. IT can save us moe in a long term.

SPAM ALERT. China Man on the loose.

[Mike90250]

Led light is vey good. IT can save us moe in a long term.

That's right - Save MOE. 3 Stooges Rule !

[elisa123]

led light foum

Led light is vey good. IT can save us moe in a long term.

[cirrusled]

Hello, does anybody know is there a website/forum about DIY LED lights or information about LED light projects.

hi while searching through your query i am across with these two sites. hope this will help you...

http://www.ledsupply.com/diy-led-projects.php

http://hacknmod.com/hack/top-10-absolutely-stunning-led-light-projects/