UGSHY 10 PCS Truck Side Light, Round LED Clearence Light, 12V Trailer Side Marker Lights, Taillight Brake Stop Lamp, for Truck Car Bus Trailer Van Caravan Boat (Red & Yellow)

They light up. These appear to be single LED bulb lights. They light up but you can see that there is only one tiny spot lit up in the center of the lens. These will not be used for marker lights now that they are not nearly as bright as the rest of my lights. These will likely end up as dash indicator lights now.

NOT SAFE – NOT DOT FMVSS-108 COMPLIANT – RETURNEDNOT SUITABLE FOR CLEARANCE LIGHTS This is a warning about the proper application details that you need to know so that you will not have any problems with the Highway Patrolman and or your vehicle insurance being valid if you DIY these lights. You MUST NOT install these lights on a vehicle that will be used in the USA on the highway. This trailer light kit DOES NOT have the proper SAE or DOT certification. Such certifications must be provided on the fixture itself for the Highway Patrol Inspector to see. The faces of these lights DO NOT have the SAE or DOT certified labels. If you get in a traffic accident that IS NOT your fault but you are using these NON-compliant lights you will lose in court. All the suing victim's lawyer has to tell the jury is that your trailer lighting WAS NOT in DOT SAE Compliance and the jury will blame you for the accident. If these “Clearance Lights” were safe and high quality, then certainly the manufacturer would have submitted this product to one of the independent electrical safety testing laboratories for electrical safety testing, SAE and DOT certification, and labeling. I wonder why the manufacturer did not have this product certified. I am NOT going to use this product. You should not use this product. Why would you use it when you can buy proven safe electrical safety tested certified products from all over Amazon? You need to know all these terms before you install trailer lights on a vehicle that will be used on the public roads in America: DOT; SAE; FMVSS and DOT FMVSS-108 requirement. DOT is the Department of Transportation. DOT is the federal agency that sets standards for vehicle lighting. BY LAW, all headlights and tail lights must be DOT approved to be legal for use on all roads and highways in all 50 states of United States. Head or tail lights without DOT approval are intended for off road use only, and are not legal for use on all US roads and highways. So all DOT approved headlights and tail lights will stamp the word “DOT” on the lights to show law officers that they are street legal and complied with the transportation law. SAE is Society of Automotive Engineers. SAE is a world wide organization that sets automotive standards for the manufacturing, testing and design of car lighting. To be SAE approved, all headlights and tail lights must past certain standards, test procedures and material test; set by SAE to guide the quality of the product. FMVSS is Federal Motor Vehicle Safety Standards that specify Federal Lighting Equipment LOCATION Requirements. An SAE specification is useless standing alone without also having the DOT approval specification. SAE is the design and DOT is the approval. These LED tail lights DO NOT have a DOT SAE specification rating meaning that they MUST NOT BE USED on a highway use vehicle. So you need to do your own research. In my state I can call the Highway Patrol and my friendly Highway Patrolman will come out to inspect my DIY homemade trailer to be sure it meets highway use lighting requirements and give me free advice before I use it on the highway. It is much better to have the friendly Highway Patrolman visit you at home rather than on the highway because you negligently made a dangerous trailer lighting mistake that caused a motor vehicle accident. My Liability Insurance Agent, and my lawyer, both call these types of just-waiting-for-a-lawsuit type products: “Litigiously Incorrect”. In vernacular these types of products are a great product for earning money for the suing liability lawyer, a terrible product for the hurt victim and negligent user.