Proper use of any product sold by Wright’s Lights LLC is solely the responsibility of the end user and/or purchaser. Your state may require special licenses or permits to operate certain types of products we offer and it is again the responsibility of the end user or purchaser to make sure all federal, state, and local laws are followed. Please check with your local Government or local law enforcement agency prior to using any of our products. We will not be responsible for the end use of our products. As with any used electronics there is no guarantee or warranty on these items. Every effort has been made to ensure a quality product. All items have been tested. And function at the time of shipping.