Howdy;
Those are referred to as 'drivers' not 'ballasts. Ballasts is an old term dating back to fluorescents... and later, HID systems. Ballasts are typically multi-mode devices that have start and run profile phases as required by the tubes / capsules. Drivers are typically much simpler - in the case of LEDs they provide a constant-current source to the emitters, regardless of input voltage variations. Ensures the LEDs live longer than a few seconds, lol.
On another note - for some factual info on the suitability of P&P LEDs in factory halogen housings, refer to this:
https://www.danielsternlighting.com/tech/bulbs/Hid/conversions/conversions.html
Other genuinely excellent sources of info (if one were to actually care aboot truly high-performance, proper, effective vehicle lighting), go to The Retrofit Source,and/or HIDPlanet websites.
Bottom line - there isn't a single available drop-in Plug & Pray system that produces a bright but well-controlled, uniform, wide beam pattern in a factory halogen housing.
Which is why, as soon as my dang tricycle arrives, I'm initiating a full HID retrofit. Given Sir Lamont was so kind as to post up a vidya of the housings, it appears as though a Mini-H1, or possibly a MiniD2S projector can be made to fit. Measurements and rear clearance will determine which projector will be suitable.
4500K colour temperature, (certainly no higher than 5000K - going up the spectrum into blue may look cool, but is useless - and actually REALLY useless & dangerous in the rain due to wavelength absorption), Morimoto components from TRS, 35 watt ballasts. And a method to inhibit headlight turn-on @ startup. Either a time-delay or manual control via a switch. Hot-restrikes are very bad juju.
Looks like factory housings are aboot $155 Benjamins apiece. Not bad. And will allow for no downtime as work on the retrofitting progresses. Existing reflectors can be blacked out, painted body colour - git as fayncy and creative as you wish sky's the limit. Also allows a full return to stock for resale, etc. Do not yet know if the factory units use permaseal or reg'lar easily-to-bake-open butyl as the sealant around the lens. Will soon.
The more you ride, in all-conditions, the more crucial investing the time and funds into this specific endeavour becomes. Serious riding demands serious lighting. Period. Be seen - sure - but you also need to SEE.
[FWIW - Do not depend upon the various aftermarket kit offerings posing as 'fog' or 'driving' lights (which are two fundamentally different animals to boot) to effectively supplement the heads. The ones I see here are mostly fer show - provide some visibility fer the front end of the bike, but very little useful illumination travelling at 88 feet/second. Just indiscriminate 'blobs' of light. None are true dedicated 'fog' lights either. There is a specific optical architecture to achieve that. I have a set of BMW X5 LED fogs made by ZKW with an incredible fog-specific pattern - low, flat and very,very wide - that I will need to shoehorn into the stock aux lighting location. Fer that, the replacement factory blanks/grills for that area are Approx $15/each, as they WILL need to be heavily hogged out to fit the +3.5" housings. again - to facilitate minimal downtime and a return to stock if necessary.]
Lastly - given some of the Spectacularly EXpen$ive moderooskies and 'Fartles' and non-functional bling y'all fellers & fellerettes throw yer beer money at, this project will probably end up being one of the cheapest - yet most effective and important - safety and functional improvements a ryder can make.
Imagine a beautiful, bright, uniform beam pattern 8 lanes wide, with a proper well-defined SAE cutoff that does not impact oncoming traffic, and does not produce unwanted foreground lighting (which kills yer distance vision), Drool.
Can't wait. Don't leave home without 'em. $35k bikes deserve SO much better than inadequate, marginal
rinky-dink Honda-Civic-wif-a Fartcan-driven-by-a-nipple-pierced-punk lighting. Heck -
everyone deserves better, lol.
Reckon this info is not fer everyone. Good thang I ain't 'everyone', eh? .
Cheers
E