This company may have the worst customer service departments I have experienced. I purchased my Balsam Hill tree in 2017 for around $800.00. I thought it was a lifetime purchase and didn't expect strings of lights to be going out so soon. I requested a wiring diagram so I could understand what the components are and they don't have such a thing!!?? They could not tell me what kind of string of lights I could replace with (3 of them) so I purchased these bulbs. They do not fit--- so the only way to use them is to remove the bulb from the housing and put it in the old housing--- tedious!! I have the feeling they frequently change the vendor of bulbs and light strings and they have no idea what your particular tree has. I would not purchase a Balsam Hill Tree again!!