There probably isn’t a specific name for them.
I don’t understand what you’re asking. It’s Winjet. There is no type. It’s whatever cheapest projector is on alibaba at that given day.I know they use H7 lamps that are 12v and 55w. Who makes them would be great to know, are they strictly made for Halogen lamps, What style are they etc. When I look at retrofit websites they usually ask what projectors you have and at the moment all I know is they come in Winjets.
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Source High Quality H7 Single beam car headlight projector on m.alibaba.com
High Quality H7 Single beam car headlight projector, You can get more details about from mobile site on m.alibaba.com