AutosmartKL-25108RK 4" Round LED Stop/Turn/Tail Light Kit with Red Lens

Put these lights on our tailgating vehicle to replace a pair of incandescent lamps we had. These are a LOT brighter, and installation was very simple. Since we had existing lights, we had to cut the connector off the old one and wire on the new connector. The only other issue we had was due to the truck having a sloped roof, we mounted the light itself upside down for clearance.For half the cost of the competitors, we are very happy.UPDATE: This are 2 years old now, and these are still going VERY strong. No issues at all.

These LEDs came well packaged with connectors included (just like the picture). I bought these to replace the Glo-Brite 4" LED tail lights in my Lance camper. Surprise, these lights will not fit in the existing camper holes even using the old gaskets. The holes need to be enlarged in diameter a few millimeters which is OK if you have the right tools. Of course then any future replacement should be checked that they are the same diameter as the Autosmart.The Lance connectors were compatible with the lights so connections were easy. The lights appear well made and are bright, definitely a good value.

I purchased four of these lights for the back of a semi truck trailer. At first I wasn't sure if I liked them or not due to them not looking very bright up close and at an angle. But I must say I was surprised once I stepped back to look at them. They are very bright at even a distance so that is always a good thing. I needed something LED due to me having to replace at least one incandescent bulb a week, with these LEDs I haven't had to replace them.

They work as described but I had to file the edges to make them work and the gaskets they came with are pretty cheap.

Let's set the record straight: These fit in a 4-1/2" hole, same as most DOT taillights. The 4" number is a trade size designation. The company selling these has no clue as to the hole size, they are merely resellers, just a catalog number to them. Fortunatly, the correct info was obtained by reading the Amazon questions, even though some answers were wrong. I asked the seller, "we pay the sales tax", but they gave the wrong info, so I bought them from Amazon directly. I just installed them in my pickup with a utility box, fit perfectly in a 4-1/2 hole, after removing the stock ones. They are brighter than stock, which is the point, but that is only directly straight on. Move to the side and they dim considerably. Such is the nature of LED's, they are directional. To use them for a substitute for halogen/incadesent, they would need some reflector technology built in. Same thing happens with some home 120 volt LEDs.

I put these on a wooden bed that I built on my 97 nissan pickup. They look great and work well. I wish that there was an option to get a two pack instead of just single or a four pack, but that's not a big deal. I did have to order some diodes to prevent my turn signal from backfeeding through the brakes; but since these are made for a trailer that is to be expected.

I ordered a set of 4 lights for a toyhauler trailer. They were much brighter than the incandescent lights they replaced and fit perfectly. They used the same pigtail and rubber gasket as the PM brand lights they replaced and even had a dab of weatherproofing grease on them. They were also delivered quickly - what more can you ask for?

Great lenses. Had to sand some of the plastic bumps off it to get it to fit my trailer. Also had to add a new ground from my RV to the trailer because they were not very bright. Once I added the ground, they work great.Update from August 2013: One of these has now failed. So be aware, the quality may not be all that great.