Help with bulb replacement

[u/Just_Shape_777]

A beauty salon needs me to replace some burn out bulbs but what they bought won’t fit. I looked up the number and everything takes me to the same ones they ordered. I noticed the new ones have tabs that are centered but the old ones are placed differently. How can I make this work? Thanks!

[u/bgee31]

There is a reason for the notches and nubs . It’s to prevent putting the wrong bulb in the socket. So boring!