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redpoint5 · 05-14-2019, 06:53 PM

My Gen III Prius had halogen bulbs in projector housings. I replaced the halogens with HID, and there are 2 plastic covers (which have no apparent purpose to me) in the engine bay toward the fenders that perfectly accept the ballast.

Much better light output, the pattern is faithful to the original, and no burned bulbs.

BTW, I tried LED, but not only did the tabs break off that hold them in, but the pattern was terrible. My experience is that LED works well in reflector housings, and HID works well in projectors.

05-14-2019, 06:53 PM	#28 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,851 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Pacifica Hybrid - '21 Chrysler Pacifica Hybrid 90 day: 43.3 mpg (US) Thanks: 4,334 Thanked 4,490 Times in 3,453 Posts	My Gen III Prius had halogen bulbs in projector housings. I replaced the halogens with HID, and there are 2 plastic covers (which have no apparent purpose to me) in the engine bay toward the fenders that perfectly accept the ballast. Much better light output, the pattern is faithful to the original, and no burned bulbs. BTW, I tried LED, but not only did the tabs break off that hold them in, but the pattern was terrible. My experience is that LED works well in reflector housings, and HID works well in projectors. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death! Last edited by redpoint5; 05-14-2019 at 07:13 PM..