Square and hexagonal MR16 Dichroic light bulbs with covered glass. 60 deg beam angle. Very popular for decorative applications in homes.

12 volt 20 watt Square Halogen Light Bulb – Aurora AU-MR16/20QS

12 volt 35 watt Square Light Bulb – Aurora AU-MR16 35SQ – Square Bulbs

Aurora AU-MR16/50SQ 50 watt Halogen MR16 Square Light Bulbs

Aurora AU-MR16/35HX 35 watt MR16 Hexagonal Dichroic Light Bulb

Aurora AU-MR16/50HX 50 watt MR16 Hexagonal Dichroic Halogen Light Bulb