Originally Posted by Dave9
Umm, it seems like they were JUST replaced recently, so we have no idea if they are quality bulbs or will dim or burn out in tens of hours. Don't believe for one second, lofty claims of tens of thousands of hours lifespan that some garbage products make. Then again it is entirely possible to make long lasting LED bulbs, and they are usually dimmer than the incan bulbs they replaced when forced to fit in a small form factor as a retrofit.
A link would help. "Chipset" is not how they guard against reverse polarity in something that tiny, it is probably nothing more than a diode rectifier, which is fine, but says nothing about how overdriven the LEDs are for the amount of heatsinking present, vs brittleness of lead free solder, etc.
If they are brighter or bluer then I'd consider them a downgrade. Regardless of the lifespan, optimal night visibility is attained with less than fully bright dash lights and the more they get away from cold white (blue) and into the red spectrum, the better. That won't matter so much for the plate bulbs unless they are glaring into the eyes of the driver behind you, but is it an improvement if others can see your plate better?
Car forums can be quite handy for stuff like that.
Often times, I'd found popular mods were easy to find. Other owners listed project details, photos, tips, etc... They rated how well it worked out or listed specifics to what was used and where they purchased,, even best prices too. This could be anything from modded exhaust systems, complete interior/exterior lighting and LED's, engine tunes / re-flash or turbo's , dyno tuning - on and on.
There is plenty of info out there by others who've already been there. Diode dynamics or CarID were some popular sources on Nissan Infiinti forums for projects on the 350 / 370Z or G-series. I think lighting is popular because it's almost pennies on the dollar for costs versus other projects.
I did LED on my G going by others information and your point about the type and direction of plate lights is accurate. If the flood of hyper white is not on the plate or even too bright, you won't get the desired benefit. Blinding traffic behind you isn't a desired benefit either. Knowing these details before you buy is vital unless you have time and money to burn.