Parking lot led units

[Robaroni]

Originally Posted by Travis

I know for certain that they will not melt snow. perhaps the snow or the snow melt is what cause failure in the traffic light product

That makes sense.

[Robaroni]

Originally Posted by Travis

I had purchased the following LED work light from Home Depot.

Husky, 5 ft. 1720 Lumen Led Work Light with Tripod, WL1720LT-H at The Home Depot - Mobile

At 1700 lumens output, it fills a nicely-lit area that measures only 2.5 amps of on my kilowatt meter. It is twice the price of the product you listed is still very reasonable for the small amount of power it uses.

HD is pretty good for lighting, does that work light get very hot?

[Travis]

Originally Posted by Robaroni

HD is pretty good for lighting, does that work light get very hot?

No, it doesn't. The brightness annoys at close range more than any minuscul warmth! :-)

[Elcam84]

They started putting heaters in the traffic lights as he leds like mentioned don't melt the snow/iice off.

Here allot of the led traffic lights were swapped back to regular because the led units failed at an amazing rate and cost more to maintain than electricity costs. Usually about half the leds on the board would start to flicker then just go out all together. Traffic lights I go through everyday were dying within days of install.
In this case the hardware quality just isn't very good yet.

[randen]

The culprit here is the heat from a high energy LED not being dissipated within the traffic light housing.
The manufactures are retrofitting a LED board inside a housing and not considering the heat retention. The heats a killer. Anything above 50 Deg. C. for an LED will start to shorten the life expectancy. That Texas sun is not helping. I could see a traffic light baking all day in the direct sunlight with internal temps exceeding 90 Deg. C.

The traffic lights require a complete redesign. A heat sink exposed to free air in the back.

These lights could have the life expectancy of 30 yrs plus. their duty cycle is only about 50%

Where are all the electrical/mechanical engineers???

The DIY guys are having more success with cheaper components and less experience.

As far as the ice and snow build up on the lenses I've seen this first hand here in the Canadian North.

Again it requires a complete redesign. Total encapsulation of the LEDs in the colored lens diffuser will provide enough heat to keep the surface clear of snow and ice.

LEDs are a great product but the engineers have to exploit their strengths and resect their weaknesses.

Imagine light sources lasting 30 yrs. or more and requiring only a few watts per lumen??!!

Randen

[JamesPolk]

ElCam,

Would appreciate your input or experience doing this. We are looking to convert our MH lights to LED. Did you look at Noribachi out of California at all?

I'm considering their Shoebox.M for our lot lights.

22,155 Lumens @ 158 watts - ~$450 per fixture

What are you thoughts or experience with project?

[Robaroni]

Thanks for sharing, love to see this type of thinking!

[Elcam84]

Originally Posted by lisawurtzbach

It's quite pricey but I don't care about the price because I also look into quality of the product. LSI lighting is one of the best in the market which means they are one of the trusted brands. They are very reliable lighting.

It's ok stuff, nothing special. Their covers come with pre stripped out screws so you have to put clip on nuts and new screws. They don't have any wire retention inside the head so all you can do is pull the wire in the head and put a big knot in it. And they do a poor job of connections in the unit by not pushing the wires into the quick connects.

Other than that they are ok.... Have had to repair too many brand new ones in the air that I make sure to disassemble and reassemble them before installing the pole. Just poor assembly at the plant...

[shellbark]

Those are neat!