The scare light is really a backup light, and has a backup light bulb in it. It is great for using as a backup light, as it is bright, but for continuous use, the heat will melt or distort the lens. The bulb from the factory is an 1156, an 1141 is much better and cooler, long-term. Best option, of course, is to get an LED conversion kit, which is an LED epoxied to the inside of a replacement lens, and plugs into the factory socket.
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.