Why do continential screw thread light bulbs burn out so quickly compared to the bayonnet type?
More commonly than not, E26’s (standard screw in base) have a higher failure rate than a Double Contact (DC) or Single Contact (SC) bayonet based bulbs. It’s usually due to the connection points on the bayonet vs. the standard base. If you look in an E26’s rated socket, you’ll see the contact point is lifted to touch the bottom of a standard screw in bulb. On a bayonet, there’s a solid point to which the points touch. Now, when comparing standard bases to bayonet bases…most standard based bulbs are incandescents (which means they don’t usually last too long on an average), bayonets are typically halogen or minature incandescents (which were created as a signal bulb [most applications, but not all]). Be aware that all bulbs are designed for their own purpose (down to voltage, wattage, base size, application, etc.).
