A method of forming a lamp assembly includes removably coupling a burner assembly to a datum structure, the burner assembly including a fireball, moving the datum structure and the burner assembly to an aligned position relative to a reflector such that the fireball is at a focal point of the reflector, and securing the datum structure and the reflector in the aligned position.

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< Enclosed electronic ballast housing

> Planar light source and planar lighting apparatus

~ 00460