Lumen Bright DE lamp install?


New member
I bought 3 of these lights last week and I am trying to install the bulbs, but they don't stay locked in place. I have other DE lighting and I know that you have to push pretty hard to get them in place, however with this light the porcelain blocks the lamp from going in far enough to lock in place. The bulbs are Phoenix 14K???
Has anyone else had this problem?