Household (Gold Plated) fits Lumedyne, Norman, Braun and Dynalite, and most professional flashes with dual blade receptacle. Gold plated contacts gives better contact for all applications. Units with a three-prong plug can also use this plug. Examples of the three-prong plug are Dynalite (three flat blades), Sunpak and Quantum Radio 4i (two flat blades with one round blade in the center). Third prongs prevent plugging these cords into wall sockets!Long Tip PC (Gold Plated) is recommended for all 35mm cameras with PC fittings and a must for the newer Hasselblad lenses. Fits Hasselblad CF, T-Star and Bronica cameras. Not as tight as Paramount standard PC, the extended, tapered tip allows for easy insertion and removal. The PC Long Tip and PC Long Tip (Gold Plated) are identical except for the gold finish.