• Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!

  • Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.

Lighting upgrades

gimpyrobb

dumpsterlandingfromorbit!
27,786
755
113
Location
Cincy Ohio
Well, uh, alot of the led lights I buy from Peterbuilt are 12 & 24v compatible. Might want to check. I have run the oval stop/tail/turn lights on the M725 for years.
 
Oh, and no one ever mentioned a conspiracy. If you have a set sized market to sell to, and you are selling a product that will last substantially longer than what it replaces, it only makes business sense to sell it for more.
Of course component costs, manufacturing costs and supply & demand factors have nothing to do with selling it for more.
I will stick with my original post and return to the regularly scheduled programming.
 

Verkstad

Member
88
1
8
Location
Idaho panhandle
Nice headlamps !
Being from the cold country first thing to my mind.
Would LED headlights emit enough heat to keep themselves melted free of ice & snow ??


Jakob
 

jeep-Jeep

New member
304
1
0
Location
Liberty Hill Texas
when I got my 5 ton from GL all the lights were smashed and I asked one of my MV buddies about the led lights ?
He said they were to much $ and would look funny on a 800 series truck .
So I got new standard lights from rapco and asked him if they were American?
He said they were exactly the ones he sold to the government for $70 and they were mine for $39 each so I said send them .:cry:
well they are Chinese knockoffs and now I am back to square one thinking about new LED lights :|
 

PsycoBob

Member
212
11
18
Location
Auburn, NY
LED headlamps are expensive for several reasons. I'll ignore the advantages and disadvantages of supply- not needing a huge stack of filiment bulbs on hand... and not having a single spare LED lamp when one dies.

Single LED's can't (yet) match the brightness of a 50w+ halogen, so you need to gang them up.

Halogen's don't mind running at 300+ degrees, led's die at 150 or so. Makes for a pretty major design problem, between running the led's at a fraction of their rated power and not having room for a huge heatsink in a traditional 7" headlamp housing. Efficiency drops pretty sharply at higher temperatures, too.

Electronics are needed to keep the LED headlamps safe- a marker light can just use a resistor set to control current thru the LED's, but they only draw a few watts. That headlamp is probably 30w or higher. A switching power supply can have 90% efficiency or greater, reducing heat problems in the headlamp, but increasing cost.

Multiple LED's mean multiple reflectors/lenses, increasing design complexity. Making a light that'll reliably pass DOT with that many light sources is rather hard. Making a halogen bulb from well-known spec is laughably easy in comparison. (interesting note: I've never heard of the US DOT ever actually inspecting a headlamp design prior to it getting stuck in a production vehicle. The industry seems to be mostly self-regulating on this one.)

High-flux LED's are pretty rare. only 2-3 manufacturers of 5w+ LED's, and they aren't cheap. I've got several flashlights with 15w monsters in them, and the led's are nearly $30 each. Electronics to run a LED at 4amps are pretty pricy, too. If those LED's are each run on an independent driver in case of burnout, that means 10x 24v-3.8v drivers, each running at several amps on the low side. Peak current in the driver can be higher than 20a. High-temp parts and derating for the lack of cooling in that housing means expensive parts. If you want a 12v/24v light, it means even more expensive parts. If the lights are on during cranking, they will need to survive both high-voltage spikes from the starter windings and trying to run at very low voltages- increasing current draw on the 12v/24v side of the driver.


The more I learn about the challenges engineers face, the more I respect them. My car's ecu has to survive 160 degrees, and run everything at 7v during cranking. :roll:
 

Somemedic

Member
531
0
16
Location
Hobart, IN
Gotta have LED's..?

I see them on my engine at station 4, rated for 10,000 or 100,000 or whatever hrs and Ive noticed that a ton of them are burnt out. the truck theyre on is a 2006 with low miles and low hours. They shouldnt be out yet by any means but theyve gone bad and need to be replaced. As far as those loony prices you can buy trailer LEDs, taillights, replacement 1127's that go right into the incandecent socket, for just a little more than the older standbys at auto zone or a truck stop. Look cool? sure do. I'd love to replace the lights in my truck and take some of the load off of my alt but I dont feel the reliability is there yet. Surely not for that price.

FWIW my buddy who does fleet maintainence for several fire depts went to a truck stop shop counter to get some parts and noticed a large box on a pallet full of bad LEDs. I guess trucklite has some LED's guarenteed for life and the box was for my buddy to replace various LED's on some of the trucks he services. There wasnt a specific color but the bulbs werent all that old.
 

Hammer

Well-known member
1,483
398
83
Location
Winlock, WA
Yeah, like mentioned above, they work great IF they are made to work within their designed parameters.

Think about it, you are putting out how much light from how SMALL of a source? It may be a very low wattage, but with that small of a form factor, the heat has to go somewhere.
Seems that most of the lights out there do not really take this into account very well.

Now, my kick butt Streamlight LED flashlight gets used at least every day, had it over a year, and works great, every time. And it is brighter then most other flashlights, even some bigger $ ones.

LEDs will come into their own, but they need more time to figure it out. Especially how to mass manufacture them and keep the costs down.

I personally LOVE the idea of LEDs for trailer lights. Very little additional load on the truck, and a lot brighter.

Btw, look at the super bright LED lights used on cop cars. They see lots of hours of use, and are intensely bright! The cost is exponential, but I bet they have all the proper design as well.
 

kurtkds

Member
629
-1
18
Location
Puyallup, WA
Nice headlamps !
Being from the cold country first thing to my mind.
Would LED headlights emit enough heat to keep themselves melted free of ice & snow ??


Jakob

No they wouldn't. There is no heat being generated by the LEDs themselves.

I have the winterization cover for my deuce and it has the lexan covers over the headlight area so even when I had the standard bulbs, the snow would build up on the lexan covers instead of the lights.
 
Last edited:

bryan70546

New member
410
1
0
Location
Lake Charles La
i wish we could run the park lamps and driving lights at the same time. I just put a set of led rears from a hummer on my deuce and love them got them new of ebay for cheap .it was your pics that got me wanting them now i just need the fronts and the black out light.:-D
 

Westex

Member
579
6
18
Location
El Paso, TX
Has anybody purchased a Trilliant LED Work Lamp in 24V (manufacturer or distributor is Grote Industries), and given it a whirl. I've read it is as brilliant as sunlight without the 'arc' glare of an HID.
 
Top