Review on EIKO 1157 12.8V and 14v DC Bayonet Base Turn Signal Brake Light Bulb (10-Pack) - Efficient Miniature Indicator Lamp by Roberto Manzer

These appear to be solid, well made lights. I always keep spare taillights on hand since I went to my local auto parts stores and found they didn't work! Boat trailers are notorious for using up lightbulbs. Having had vintage cars I've found that switching to LEDs can be a real pain as many older cars just don't like retro LED bulbs. Replace the lamp every few years, use dielectric grease on the socket, keep reflectors clean and lens seals intact.