Square & Hexagonal Halogen Light Bulbs Posted on June 23, 2023 by Martin Williams 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