Xprite 31.5 Inch Green LED Emergency Traffic Advisor Strobe Light Bar, 21 Flashing Patterns w/Suction Cup Mount, Windshield Deck Dash Caution Hazard Safety Lightbar for Construction Vehicles Trucks

I have an F150 truck and I pull a 32 foot travel trailer. I purchased three of these light bars and installed one forward facing on the truck, one rearward facing, and a third rearward facing one on the back of the trailer. I control all three through a single controller switch panel. I made my own switch control box to look much more professional and factory installed than the cheap switch housing that comes with the unit.I did all my own wiring on the truck and the trailer - I did not use the supplied wiring or switches. Before I installed these light bars, I tested each unit separately using its own switches – each light bar worked. The units come with a control unit with a rocker switch and a pushbutton switch. The control unit connects to the light bar over a six foot cable. A second short cable supplies power to the control unit.The control unit is very simple – I opened it up. It is nothing more than two switches with no logic or circuitry. All the logic and circuitry is in the light bar itself. A power rocker switch provides 12 volts to the light bar, and a pushbutton selector switch (shorted to ground when closed) selects the light display mode. The pushbutton switch cycles through eight modes – six flashing modes, a constant all-on mode, and a constant all-off mode. Pushing the pushbutton switch one more time restarts the selection back to the first flashing mode in the cycle (my preferred mode).I installed these just before taking an 8,000 mile trip from coast to coast and back again. Typically I use these light bars in two circumstances - when I pull over to the side of the road, and when I come to a traffic jam in on the Interstate and I come to a stop (or near stop) to warn drivers behind me that I am stopping on the Interstate. I found the light bars suitable for this purpose, but not without problems. See my review below.Pro’s====- Easy to install- The light bar itself appears rugged and weatherproof- Quite bright - visible in bright sunshine- Sturdy mounting hardwareCon’s=====- Poorly coated mounting hardware- Inconsistent start-up operation- Cannot gang units together more than two at a time- Basically impossible to install without cutting wires- The mounting hardware does not permit enough freedom of movement to allow options during installationOverall Rating:============2 out of 5Review======The first thing you realize when you take this product out of the box is there are no instructions. None. I wasn’t worried about that - the installation looked intuitively obvious to me. Connect the red wire to +12, the black wire to ground, and mount the light bar somewhere on the vehicle. And that’s when you realize your first problem. Obviously the control unit with the switches will go on the inside of the vehicle (the Amazon description warns against letting the control unit getting wet), and the all-weather light bar will go on the outside of the vehicle. The control unit is the size of a bar of soap, so unless you are prepared to drill a massive hole somewhere in your vehicle to feed the control unit through, you are going to have to cut the cable, fashion a small hole to feed the slender cable through, and then splice the three-wire cable back together.Since I was planning to use my own control unit and my own wiring harness, that was not a problem for me. But it does create an issue for someone who might not be prepared for cutting and splicing wires back together. (Note – Always, always solder connectors when splicing wires on a car. Don’t rely on crimp connectors or simply twisting and taping – they don’t last)The second thing you realize is six feet is simply not enough cable to run between the control unit and the power bar. Sure, you could mount the control unit on your ceiling, but the power supply cable is only about a foot long, and there is usually no useful power up there. One way or another, you are going to be splicing a longer cable to the supply cable, the control cable, or likely both. As I said before, I used my own control module and built my own factory grade wiring harness. I cut off the control unit, and used the supplied control unit cable only for the last few feet to the light bars.Not including the building and installation of my own wiring harness, it took less than an hour to install all three light bars. The mounting hardware assumes you will mount the light bar on top of your roof. The hardware allows for limited aiming of the light bar, thus accommodating a sloped roof, but it absolutely does not permit you to install the light bar on a vertical surface, which I find an unnecessary limitation.I mounted the truck light bars on the fiberglass cap of my pick-up truck. It took some fiddling and planning to decide where and how to mount them. The back of the trailer was a different issue altogether, because it is a vertical wall. I built and painted a hardwood platform which I attached to exterior of the trailer back wall, and then I mounted the light bar on top of this platform. I went through all this effort to overcome the silly limitations of the mounting hardware that do not let you mount on a vertical surface. On a massive trailer wall, that is no problem - in fact it has collateral advantages. I would not have contemplated this remedy on the truck. The light bar is 10 feet high on the trailer back wall - high enough that many cars behind me can see it at the same time.Once I had everything installed and wired, I thought I must have made a wiring mistake, because the three units were not behaving as they did individually, nor as I expected. One was cycling through all the flashing modes by itself, without any input from the pushbutton. Another was stuck on one mode. The third one worked as expected. I checked and rechecked all my wiring - it was correct. Then I installed isolation switches that let me disconnect any or all of the light bars from the collection of three units, and that solved the problem, but only sort of. It seems you can only have two running together, and even then you have problems. Now before you tell me I am not using this product as intended, remember that it comes with no instructions.It turns out the isolation switches are required to solve another problem. The units ‘remember’ the last flashing mode they were in during last activation, and display that same mode when you turn them on again, but only sometimes. And even with just two light bars connected in parallel, the front bar sometimes (but not always) cycles through the flashing modes automatically. The light bar on the back of the truck sometimes (but not always) randomly picks a flashing mode when you turn it on. Only the light bar on the back of the trailer seems to work consistently – it always starts on the same mode it was on when you last turned it off.Overall, I was disappointed with the lack of consistency of the product. I have three separate units, and each one behaves differently. I was also disappointed with the mounting brackets. I installed these light bars only a month ago, and the mounting hardware is showing serious rust.As part of the light check drill (every morning and every time I hitch up the trailer to the truck), I now check the flash pattern of the trailer’s light bar. In my trip, I used these bars maybe 50 times, most often because I came upon stopped traffic. I noticed EVERYONE behind me stopped well behind me – there were no close calls.So in conclusion, they work, but:- the mounting hardware does not permit installation on a vertical surface – this is a silly limitation- their operation from one activation to the next is not always predictable, depending up on the actual unit you purchase- the mounting hardware is not treated for exterior weather conditions- the included wiring requires splicing in any installation

I like them so did some tweaker now he has them

This light bar was better than my expectation

It’s very bright which is good for distance and it strobes really good

First off. I am NOT one of those people that receive products for free or at a discount in exchange for a review.Now then... The good. It works, no issues with mine as far as functionality. All flash modes work and all the lights work.Where it needs improvement...is that i wish it were twice as bright. Is it bright enough to get attention, yes. Bright enough for day use or for any emergency response, towing or construction use? No.It could also benefit from better quality momentary(flash pattern) and toggle switches(on/off).And finally the way this bar is constructed causes it to rattle if you interior mount it, it gets annoying. This is due to the plate that the lights are mounted to. It just loosely slides into the aluminum housing and there is nothing to prevent it from rattling. I plan to add clear caulking to resolve that issue.This also means that this light at best is only water resistant. Unless like me, you are going to add caulking to seal it up.Now despite possibly sounding like this might be a bad product, keep in mind that i purchased this for like $45. I wasn't expecting the world here. For the cost, its a decent product.Update- I added clear caulking in the spaces around each light pod and dont have any rattling noise now.

Purchased these for my then 8yo son who wants to be in law enforcement when he grows up. He loves playing cops and robbers and the lights we bought really kick it up a notch from when I played as a kid! They actually display pretty well through rear tinted windows of our SUV at night too...in the driveway only, of course!! Lol! Lots of different patterns to chose from!

it does what it should do.... i needed something for my dj rack mount system to add more lights when playing the system.... i know these lights are mainly for automobiles... buy why not something different.... i mounted this bar lights on each front side of my rack... it really looks cool, something different you would say.... these lights are not super bright, but bright enough.... to convert the 12 volts i had to install a power supply of 110 to 12vdc with a voltage regulator..... anyway it works fine.... for the product, it seems to be fairly well built, and the lights are sealed, but not water proof.... the switch is ok, but i seen better quality.... the wiring was long enough to do the job, but may not be long enough if you do decide to install in a car or truck.... the seller shipped the package within the proper time, but packaging could of been better with more inside packing padding..... never-the-less, the price, a little high when something made in china.... these lights can be installed not only in cars or trucks, but if you have a party room or want show off your rack systems these light would work as well....

Super bright and many settings for flash pattern. Had trouble finding a good spot to mount it in my tundra but that is not an issue with the light more an issue with my truck. Power supply is not long enough so I had to buy the extension to help it reach from the back of my truck to the front.

Very brite. Excellent product, recommend to everyone.

Recieved this yesterday and was disappointed to see a cheap plastic switch attached to the power cord. Not sure why these even come with those terrible cheap switches as you need to cut them off to install them anyways. In any event, luckily the flasher unit is built into the actual bar so cutting off that switch is no problem. Once removed you have a red positive wire, black negative wire, and a white trigger wire [ground short] that changes the flash pattern. You can wire this to a rocker switch and just short aire to flash pattern you like and tuck white wore away, or use a rocker switch and a spring loaded switch to be able to change flash patterns as needed. Solid construction for inside of vehicle, not sure how long it would last on outside if vehicle. Installed inabout an hour if you know wat yoir doing. Bright lights and remebers flash pattern even after disconnected from power supply.

All screws are rusting within a few weeks of install. Mounted to the back of my Jeep as a trail light. Light itself is still working fine. Just not a fan of rust.

Fit these in my ‘09 Charger front and rear. Super bright, amazing for emergency response and roadside hazards! Highly recommend!