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Everlast Wellworth Type III

Everlast Wellworth Type III

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The only induction street light I have ever seen personally, this one is customer-owned. It is the only induction cobrahead fixture I know of which has been approved for use by the US DoD.

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Light Information

Light Information

Manufacturer:Everlast Lighting Div. Full Spectrum Solutions, Inc.
Model Reference:Wellworth Type II Cobra (ECHUS-EC series)
Lamp
Lamp Type:Induction
Shape/Finish:Circular
Service Life:100k hrs. (MTBF based on 8-12 hrs use per day)
Fixture
Fixture Type:Cobrahead street light
Ballast Type:RF generator
Photocell Type:Twist-lock
Location:Gate of a business
Electrical
Wattage:55
Voltage:240
Optical
Lumen Output:4650
Color Temperature:5000K
Color Rendering Index:85
Physical/Production
Factory Location:Jackson, MI
Application/Use:Street lighting

File information

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Album name:douro20 / Ballasts/Fixtures/Gear
Keywords:Lamps
File Size:163 KB
Date added:Feb 08, 2016
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xelareverse
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xelareverse UCjohSkrTwJJJzpc_r8D3vKw xelareverse
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Feb 09, 2016 at 06:33 AM Author: xelareverse
I-94 has about 150

LED Toobs minus Too equals LED bs

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Ash
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Feb 09, 2016 at 10:38 AM Author: Ash
Nice looking. But i dont think they are any better than HPS or even Mercury for lighting a road

The thing is less efficient than HPS in Lm/W alone. But if we want white light, put that aside

And an Induction "circline" allmost as big as the reflector above it, cannot provide too good optical control. The optical losses can pretty much bring it down to the efficiency of Mercury, and the Mercury allready comes with the benefits of the exceptional long life as well, at a much lower cost. So the benefot of the Induction becomes really moot
douro20
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Feb 09, 2016 at 11:28 AM Author: douro20
The optics have been optimised as much as is possible for the type of lamp used. These things actually are more efficient in terms of light output than just about any other induction street light available.
Ash
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Feb 09, 2016 at 12:29 PM Author: Ash
I see they are optimized, but it is not on par with HID

Thing is, with a "circline" shaped lamp, much of the light is thrown forward/backward, and there is very little that can be done with it. As seen in the picture, the section of the reflector above the "forward" part of the lamp will reflect forward as well, not to the sides

This forward and backward light just falls outside the sides of the road, so pretty much useless, especially on an interstate where there really is nothing that would make any use of the spilled light

With HID (even big emitter HID like Mercury Vapor), the reflector is optimized to throw as much as possible along the road and less across the road / behind the pole


Good application for Induction would be on some residential/park lights, where you want some light in all directions and not in a very strict direction
xelareverse
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xelareverse UCjohSkrTwJJJzpc_r8D3vKw xelareverse
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Jul 08, 2017 at 03:21 PM Author: xelareverse
Where is this?

LED Toobs minus Too equals LED bs

Potato

douro20
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Mar 23, 2018 at 02:38 PM Author: douro20
Just outside an electrical company yard in a residential neighborhood off of Pawnee and Merdian in Wichita.
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