I have a 2007 EX Sedan and I was unsure what to get for the license plate, so I got 2 different kinds to show you and myself what the actual difference is.
Super Bright LEDs
WLED-WHP LED Wedge Base Bulbs
High Power - Pure White 194/168 wedge base bulb
Here it is compared to the stock bulb.
High Power - Pure White 194/168 wedge base bulb is on the LEFT
Alternative LED
WLED-x5 LED Wedge Base Bulbs
5-LED super wide angle 194/168 wedge base bulbs (COOL WHITE)
Here they are side-by-side
High Power on the LEFT vs. 5-LED super wide angle RIGHT
Here is a pic of the bulbs.
High Power on the LEFT vs. 5-LED super wide angle RIGHT
As you can see, not much of a difference.
I also installed these in my interior.
3022-x9 LED Festoon bulb WHITE (They do not come in COOL WHITE)
3022-x9 LED Festoon bulb WHITE on LEFT vs Stock on RIGHT
All finished
After doing the interior I wish I would have gotten these.
3022-WHP2 Festoon bulb

I do not know if they fit, but I would like somethign a little brighter than the x9 led.