This is the latest thread I'm seeing regarding headlight upgrades. I have a 2017 T4R here.
I've put different bulbs (Sylvannia SilverStars, 2Stroke LED bulbs, Phillips XTR HIDs) in my stock headlights before finally retrofitting projectors.
As of Feb 2020, the best and simplest retrofit I could find browsing & after talking with Caesar from Lightwerkz was the new Morimoto Bi-LED M LED 2.0. I was planning to retrofit some Lexus IS/GS350 projectors with DS2 HID kit but turns out these new LED projectors are brighter and wider than a D2S with 50w ballast. Output wise, lux is 471 a bulb? but I think the practical measured units for actual use are Candela at 73,000 for low beams.
Anyways, I'll let the pictures speak for themselves.
Baseline wall:
Stock halogen headlights with stock bulbs:
Stock headlights with HID kit:
Morimoto HID H11 kit: 35W Ballast // Upgraded Phillips XTR HID 4300k bulbs
(I realized upgrading bulbs and ballast output was a waste of $$ at this point after plateauing my output. Real increase needed to change out projectors)
Retrofit projectors: (Morimoto Bi-LED MLED 2.0)
I gotta say that it was a PITA and took me a full day to complete with experience. That permaseal Toyota uses to seal headlights is no joke.
Couple links I could find regarding them.
YouTube
YouTube
Pic is right before I retrofitted the MLED 2.0 projectors. Running HID system in the stock headlights. Never had any blinding people problems as I made sure to aim my pattern lower than usual.
Overall, I still need to do more driving with the MLED 2.0 projectors but happy with the output and width. The cutoff is so clean that I do miss the little upward glare from the stock projector for long drives