Headlights PT425

   / Headlights PT425 #21  
I like that idea, i don't use the PT much at night, but when we had all the snow last year, i was out at night trying to keep ahead of it and you really don't want to back over the edge of the road.

Yeah, without a light back there it looks like a black hole. I have a light facing backward on the bottom back of the ROPs and a flashing light mounted on the top back of the ROPs.
 
   / Headlights PT425 #22  
On the 1850 (and I assume the 1400's) they mount a light in the engine compartment looking out the rear screen. I put two lights in the canopy facing back. I realized that this original is not as worthless as I thought. When backing up, the tail turns differently than the cab lights, You can see a bit better when it is night and you are trying to back out of the trees...
 
   / Headlights PT425 #23  
Today I mounted a Truck Star LED Utility light (part no 1492110) on one under side of my ROPS. I left the 55 watt Halogen on the other side. I have separate switches so I can run one or the other or both. The LED light is OK and good for close work, but to see far I turn on the halogen. I will probably leave it this way with LED on one side and halogen on the other. I bought a second LED light and may put that on the back. I got the light from Kaffenbarger Welding Co., Inc. It pulls about one amp.
 
   / Headlights PT425 #25  
Boy I like those chains, I bet they really make it go in the snow. Where did you get them.?
 
   / Headlights PT425 #26  
My LED lights are much brighter than the 55W halogen I have used.

PT1850 LED Lights

Ken

Yes, I went cheap and low power. This certainly gives people options. Time will tell if this is enough light, but it seemed OK last night. I would definitely not give up the remaining 55w light on the front. Also even with all the lights on now I am not maxing out the electrical system of the PT.
 
   / Headlights PT425 #27  
If you mean my chains, here is a link with pictures and where i got them (and yes, they do work quite well):

PT1850 Chains

That is with them on just my single wheels versus the duals that was in the pictures with the lights.
Ken
 
   / Headlights PT425 #28  
Hey Ken. In the other pix on your site they chains seem to be moving around abit. Just the nature? I am thinking of your 1st picture we see, and the LED pictures.

Also, when you are dualing, you run the chains on the outside?

As I do not have a manicured lawn, I am thinking of chains year round..
 
   / Headlights PT425 #29  
Hi Carl,

The studded ones are quite rigid, held tight with the tensioners i made. The cheaper non-studded ones did move a little bit when i used their mounting system. Non-studded chains are nice for year around. They actually prevented damage to the ground because they spun less than tires with no chains.

Yes, i run the chains on the outside with duals. The installation is less finicky wrt to clearance.

Ken
 
   / Headlights PT425 #30  
My LED lights are much brighter than the 55W halogen I have used.

PT1850 LED Lights

Ken

Ken, I bought one of these lights, but it has no instructions that tell me what the polarity of the wires is. It has one black and one white. It's probably black connected to ground and white to +12 volts, but I want to be sure. Can you help?
 
   / Headlights PT425 #31  
Hi Bob,

Yes, I know. I did hook them up wrong on my first try but it did not seem to harm them. I can not remember what nomenclature they followed - if it was black for negative ground or white for "neutral". I believe white was power but i can not swear to it.

Ken
 
   / Headlights PT425 #32  
It is hard to hurt an LED. The reason they work is that they allow or restrict the flow of electrons (diode) so if you hook them up backward not much will happen. Assuming of course you are hooking to the correct voltage.

Carl
 
   / Headlights PT425 #33  
Typical color coding is black is hot or power and white is neutral or ground.
 
   / Headlights PT425 #34  
But on 12 V DC, black is ground and red is hot.

My guess is that i defaulted to the normal electrical standard and used the black wire for hot and that it was the other way around but i will check if i remember when i get home.

Ken
 
   / Headlights PT425 #35  
OK, I hooked it up. Black is ground, white is +12 volts. Works fine.

Thanks for the input. Having burned out hundreds of components in my life, I tend to be careful.
 
   / Headlights PT425 #36  
I just installed the Autoilumination 4.5 inch, 18watt, round work light on one side of the PT422. It is so much better that the other LED light I have. What a difference. I highly recommend the light, however, I still have not heard back from them about the polarity. It's been over 24 hours. I tried calling their phone and I got a message to use the Internet. I think they just have a phone to say they have one.

Anyway, great light.
 
   / Headlights PT425 #38  
I still have not heard back from them about the polarity. It's been over 24 hours.
It is a diode (ie. electrical check valve).

If you hook it up backwards, no current will flow... unless you are talking about voltages more then ten times their ratings. You won't hurt it by hooking it up backwards, it just won't produce any light.
 
   / Headlights PT425 #39  
I wouldn't worry about hooking up the wrong way- as your unit showed when you did hook it up correctly. As Tim points out, diodes are the electrical equivalent of a check valve.

Most of the LEDs that I'm familiar with won't handle reverse voltages of 10X (e.g. don't plug them in your wall outlet!), but all of the ones that I have used will handle being hooked up the wrong way at normal voltage, with no harm. (As a manufacturer, you have to count on mechanics occasionally doing dumb things- like hooking up a battery backwards, or getting the wires mixed up...)

Many LED lights, especially those for trailers, are hooked up with a full wave rectifier built in so that it doesn't matter how the wires are hooked up. The downside is that you loose power efficiency, and reliability, but you gain protection against misconnections-common in trailers, uncommon in trucks/tractors. YMMV.

All the best,

Peter

It is a diode (ie. electrical check valve).

If you hook it up backwards, no current will flow... unless you are talking about voltages more then ten times their ratings. You won't hurt it by hooking it up backwards, it just won't produce any light.
 
   / Headlights PT425 #40  
It's working fine. So the polarity issue is over, but it would have been nice to hear from the company. I took some pictures, but have no way of setting my camera. The first three pictures look the same to me. The first picture is the low power LED only, the second is the Autolumination only, the third is both and the fourth is a looking at the lights. You can see the difference here. Of course I have one type on one side and a different type on the other. The Autolumination light is on the left side of the picture.

I have a separate switch on each light. Probably not really needed now, but I like control.

I am tempted to get one of the Autolumination lights for an emergency light in the house. I could put it on my Dewalt battery or run it off of a car battery. Kinda expensive for a flash light though.
 

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