This pair of replacement lenses from Whelen is the perfect addition to your strobe and beacon lights. Made specifically for the ULTRA/FREEDOM/9M Series, these 4-inch amber lenses will ensure that your vehicle or equipment remains visible and safe on the road. The lenses are made from high-quality materials and are built to withstand the rigors of daily use. They are easy to install and will provide reliable performance for years to come. Whether you're looking to replace a damaged lens or simply want to upgrade your lighting system, these Whelen lenses are an excellent choice.