美国采购需求：LED出口指示灯、LED紧急出口指示灯、LED应急灯、LED紧急出口灯、LED出口灯组合、UL认证应急灯

I'm interested in your exit signs featuring a plastic black cover plate. Could you please provide more details about this product? Specifically, I'm looking for information on the materials, dimensions, and any relevant certifications or standards it meets. Additionally, if there are different variants or options available, I'd love to know about those as well. Moreover, could you confirm if my understanding is correct that we are focusing solely on ordering this specific item? If there are minimum order quantities or any discounts available for bulk purchases, that would be great to know too. Looking forward to your prompt response with all the necessary details. Thanks!