Do I need to use a relay with these?
2042118
I do and have not had a problem using it as a backup light for better than two years.
2042119
I didn't. I used these for plow lights and hooked them directly to battery and a switch.
2042120
Not if you use a switch with sufficient amp rating.watts divided by volts=ampsI assumed these were 100 watt bulbs (suckers are bright!). Divided by 12 volts gives you a minimum amp rating of 8.5.I got a 25 amp toggle switch online for under $5.
1346761
You can hook it directly up to your wiring. No relay necessary. I use these for bow fishing and hook quite a few of them directly to the battery.
881722
well it depends, i dont think you need the relay, but you may need the harness if your car has never had an alarm before. just to note, this works more like a factory alarm, nothing fancy, its just to open/close doors etc. If the alarm is going off, you would get any indication on the remote
1727586
They go to a separate Relay... (integrated) I have them on my Jeep, they draw too many amps.. Its best to wire them with the relay and separate switch it comes with. Good chance burning up your system...
636603
I am no battery expert. But, these are the first aux lights that I have wired without a relay. The relay issue, as you may know, is due to excessive amp draw through the switch. These are very low amp draw. I would think any battery would not be effected using these lights. Besides, this is as much a function of your charging system. Hope this helps. PD
231954
I think they should plug right into your OEM harness is you already have the wiring for the two horns. I may be wrong but I don't think you'd need a relay unless you were going from 1-2 horns. You may have to change the connectors if they are of a different style. These horns are good and loud.
838694
They do not operate independently. If you need t two relays, you need two separate set of remotes. Both remotes are coded to that one relay only.
645203
Well I am no car electrician, but what you are describing is exactly what a relay does so I would say yes. It should work just fine. You need hot in, hot out, and a ground. Pretty simple really. I hope this helps.
657043
I *think* they are for external power as you suggested. It would be useful when many relays were operated and their current exceeded the Arduino's power supply regulator circuit capability. I am running two 8-relay boards off the Arduino 5v but am careful to only operate 3-4 at a time. The Arduino forum may have additional insights. If using external power be careful not to exceed arduino's output pin voltage and current sink capabilities.
1813066
Mr. Cleaver, they do not, however there are a couple of good choices that pop up when you select these lights. I suggest going with the ones that have a relay included simply from the standpoint of safety and practicality. Still less than 25.00 with a lighted switch.
1872303
They work as normal. The relay harness just gives you the extra power your HID kit needs to power on correctly. You still can use your light switch to control them, whether to turn your lights off or on.
2178584
I don't recall, but they are not needed. You will need to reuse your existing wires.
793299
Try Googling your make and model against the relay. My search indicated that they are not compatible. However if your vehicle is available with LED lights there may be a GM part number.
1408190
I just hooked mine directly to a trolling motor battery with spring clips & they are bright.you might have a problem with your relay.try hooking them up direct & see how bright they get.
678539
If you only use one tone (Hi, or Low, not both horns, same circuit), no, you do not need to install a relay; just connect it using the original horn wires (polarity does not matter). If you are using both the High, and the Low tone horns, wired in parallel (best option), then I would recommend a relay, and direct connect to the battery (with an inline fuse) for maximum power transfer, and maximum loudness. I used two sets of both horns, on two separate motorcycles, in parallel. I also used a relay, controlled by the OEM horn circuit, with a direct connect to the batteries, for maximum volume. A relay is less than $10 at any automotive parts store (Wal-Mart likely has the lowest price). If you need help with electrical circuits, here is a great book's ISBN-10: 0760327165, "Motorcycle Electrical Systems: Troubleshooting and Repair (Motorbooks Workshop)". Check your local library for a copy, or purchase it here, on Amazon. Cheers!
96094
I used these on a 2007 Jeep SRT-8 and they required no relay. They plugged directly into the factory harness. Very easy install.
2069182
Without digging out the instructions, I'm 98% sure NO. These have a line and load connection...basically power in and power out to send surge protected power to another location.