This particular lamp is the same one I posted a lit pic of. This is the one that struggles to start on a cold start. Ironically the etch is in mint condition lol. I have about a dozen 175W /DX lamps that Joe had sent home with me yesterday. All work. About half have light hours and the other half are in various conditions of dimmed-out. I also got a few /DX 100W MV lamps from him. Some NOS/lightly used and a couple are dimmed. One doesn't work at all. I haven't tested the 400W lamps yet.