what is the reverse polarity light for?
845597
It lets you know if you have it connected wrong to the car battery. Damage to the alternator can a occur if you attempt to jump it with a battery connected backwards. Ex. Black to Red (wrong) . Black to black (right). You match the wire colors.
1786792
Some newer cars have electronics that detect a difference in the amount of current being drawn, in order to let you know that you have a bulb out. LED lights use far less power, leading to the false warning you have. In many of these cars the warning only applies to specific light, such as turn signals - so using them in reverse lights would be no problem. Other cars require "can bus" compatible bulbs to avoid errors, and in others, a resistor must be added to correct the problem. If you are using them as reverse lights, try to determine if you car uses "can-bus". If using them in turn signals, try them instead as reverse lights. Some newer cars have electronics that detect a difference in the amount of current being drawn, in order to let you know that you have a bulb out. LED lights use far less power, leading to the false warning you have. In many of these cars the warning only applies to specific light, such as turn signals - so using them in reverse lights would be no problem. Other cars require "can bus" compatible bulbs to avoid errors, and in others, a resistor must be added to correct the problem. If you are using them as reverse lights, try to determine if you car uses "can-bus". If... » Read More Some newer cars have electronics that detect a difference in the amount of current being drawn, in order to let you know that you have a bulb out. LED lights use far less power, leading to the false warning you have. In many of these cars the warning only applies to specific light, such as turn signals - so using them in reverse lights would be no problem. Other cars require "can bus" compatible bulbs to avoid errors, and in others, a resistor must be added to correct the problem. If you are using them as reverse lights, try to determine if you car uses "can-bus". If using them in turn signals, try them instead as reverse lights. « Show Less
682173
Should work without reverse light wired. I had a problem with my running lights not working. I would return for replacement.....
776300
Yes- I did that for my 2001 Pontiac Bonneville. There is no "up" or "down" orientation to the relector or lens, so you don't need to reverse them like on some rectangular style lamps. These are so bright (as-is) that I didn't bother to throw in 100w halogen bulbs like I have on many other auxiliary lamps. Very happy with the light pattern too: I see much better to the side of the road- far enough ahead for safe visibility at highway speeds on winding roads.
2115091
No don't reverse polarity. This is only a trickle charger it maintains your battery charge when in storage or not used for long periods of time. If your battery is dead you need a full recharge with a regular charger that puts out 12v. It will take 6 to 8 hours to charge. Sometimes when your battery is dead it will not hold a charge because the battery plates have shorted out.
1327787
Not sure exactly what you mean by reverse the orientation. Power flow from one side of the fuse to the other. I don't think it matters which sides of the prongs of the fuse, if that's what you mean. I have used these fuse taps for extra lights several times with no problem. You power lead wire to the radio should have another inline fuse. The worst that can happen is the in line fuse blows.
1550328
No, no polarity detector. You have to change the connection to measure charge or discharge currents.
426623
When I installed this in my polarized stern light socket (two contacts in the baseplate, on opposite sides) it only worked in one orientation, which leads me to believe that like all LED bulbs, it is polarized, but the side pins only hold it in the socket, they are not the electrical connection. IMHO
841854
You splice the wire from your reverse light to the wire that is giving for the reverse lights on the bar
2226409
On a small 12V incandescent light, polarity is not critical (positive and negative) to make it light, what can become important in a marine environment is corrosion from electrolysis. A good practice is to disconnect the battery when laying up the boat for any length of time.
1333753
It uses deans connectors which determine the polarity. Search images of deans connectors.
2168676
Some vehicles (Jeep for example) use pulse-width-modulation to reduce voltage from 14.1 to 12.7V. This causes all kinds of problems in anything but incandescent bulbs. The answer is a damping circuit. But mine don't flicker as reverse lights (07 Wrangler).
652719
Not sure about that as mine is negative ground. That said, it should be ground polarity insensitive by reversing the connections.
688281
Since we're dealing with diodes I'd say polarity needs to observed. The good thing is you no harm if it's not right. It just won't light.
875125
Attach a multi-meter set to measure dc volts, to both wires, just like testing a battery. If the movement is off the grid, then the wires are reversed. If the meter tests correctly, then the polarity is correct.
1999475
Hi Joe - Sorry, but I don't know what the specs are on it, but is does have a reverse polarity switch on it. I connected it to my Kronos 88 and it performs very nicely. It's quite heavy compared to the brand X models, which helps it stay put while your performing.
1736278
You just need to take the fan off of the frame, turn it over and re-mount to the frame. No need to reverse polarity.