About Sigma Sport Products: German product development - Brand quality - TESTED AND APPROVED SIGMA SPORT represents German technology at its highest level, combining innovative design with precision engineering. We test all our products in our in-house laboratories to withstand the harshest conditions, ensuring quality continually through our production. All SIGMA SPORT standard lights conform to the stringent German traffic standard, and all SIGMA SPORT products are CE-approved. No SIGMA SPORT product is shipped until it passes our thorough inspection. With perhaps the lowest return rate in the industry, SIGMA SPORT is committed to the constant improvement of our entire product line. As a SIGMA SPORT customer, your confidence and trust is a key component to our worldwide success.