Use this Satco 92-414 medium to mogul socket enlarger to ensure you can still use your mogul base bulbs. Screw your mogul base bulbs into this adapter and you've converted it for a medium socket. This adapter is rated for a maximum of 660 watts and 250 volts. It is not pulse rated and cannot be used with HID fixtures. Don't get frustrated by an incorrect base type ever again!
Note: Socket will be extended by 1.75 inches.