The Novita LF12 Kit is for the LF12 which is an electro-mechanical loud flasher that operates at 12 V. This type of turn signal flasher uses electro-magnetism to operate and is up to 5 times louder than thermal flashers. Loud flashers were designed for applications in which engine noise can cause the driver to be unable to hear the turn signals operate. The LF12 is capable of handling additional lamp loads due to trailering and is proudly made in the U.S.A.