I’m not a headlight expert so use the information at your own discretion, but I can say that the information provided is only based on first hand experience not speculation I will talk about each options and share the pro and cons as I see them.
IPCW Crystal Clear Diamond Cut Headlights 7003 (5.75”) 7005 (7”) 5.75” 25$/headlight halogen and $40/headlight LED
Pros: Quick delivery, nice quality, glass Lenses , easy to install
Cons: Flat lens only
Hella H4 flat lenses only. Sold without bulbs and accepts H4 LED or Halogens. Available at Summit, Amazon etc. No relay needed for LED
The quality of these is good, the glass is nice but the metal back is ok quality at best IMO , the pictures everywhere show these as Cibie style lens but I’ve received classic style every time I ordered so I think they changed design at some point .
I’ve bought these for the 510 and using 4 of them with LED bulbs. Very happy with the quality.
IPCW on 510
IPCW on 510 low beam
IPCW on 510 High beams
The bulbs are Sealight X1 LEDs
https://sealight-led.com/x1-h4-9003-hb2-led-bulbs.html
Neolite Conversion headlights 5.75” 16$/headlight halogen and $40/headlight LED
Pros: Nice quality, glass Lenses , halogen bulbs included
Cons: none for me
Available H4 low/hi beams (5.75”, 7” and 200mm rectangle) and H1 High beams (5.75”) No relay needed for LED
They come with halogen bulbs if ordered from Classicgarage.com (https://classicgarage.com/neolitelamps.html) and should be the go to if you’re going halogen.
They also offer both flat and curved lenses. I tried hem with LED and they were pretty good but with a little more scattering than the IPCW. I was going to use them but they unfortunately made mistakes in my order a couple times and I ended up with different lenses and it was just easier and faster for me in Canada to get the IPCW from Amazon.
Neolite 5.75” flat lens
Vintage Car Leds from 120$/headlight
Pros: Awesome quality, great customer service , easy to install
Cons: Some mods required with the 7” models
https://vintagecarleds.com/compare-5-75-inch-models/
Love these, very high quality lenses and LED bulbs with fan , these were designed as LED from the get go and offer multiple lend selection including Cibie and clear Hella, all the lenses have great cutoff patterns and brightness.
I have been running their VC3500 in my red roadster model for 2 years and they make driving at night a pleasure.
VC3500 Classic lens
The fan is pretty big on the VC3500 and will require modification on the bucket for Roadsters and Z (not so with the VCm3)
Other Brands I have not tested personally.
Dapper Lighting approx. 225$/headlight
Pros: Great quality , lots of choices and options
Cons: Expensive, no real classic lens in 5.75” model
https://www.dapperlighting.com/
I’ve seen them in person at a show and they offer very nice quality headlights with both modern and classic look, but they are on the expensive end of the spectrum and you will need to figure about $200 per headlight depending on options
For classics style lens you’re looking at 510 that’s $580 for Halogen and $880 for 30W LED , for roadsters and Z that’s $ 450.00
Holley Retrobrights approx. 200$/headlight
Pros: Great quality , 3 different color temperature , Holley quality
Cons: Expensive
https://www.holley.com/products/restora ... trobright/
I’ve not tested seen these in person or tested them, but I like them a lot for a few reasons.
They look very sturdy and like the best made of all the headlights , have a great lens and more importantly they are available In 3 color temperature including classic white which looks completely original while having the superior lighting output of an LED.
Figure about 180-200$ each for these but completely worth it in my opinion
Finally in case you're wondering here a comparaison of a stock halogen bulb and a Hella lens with LED side by side
