It seems like a lot of coin but messing with light bulbs can be a slippery slope until you get it 'just right'. i went through this with my other vehicles and ended up wasting a few bucks until i was happy.
the nice thing about the LUX back up lights is they are 'just right'. You truly feel like your much safer backing up when you look behind you. You'll buy the bulbs once, and be done with it. they are the right color, they are the right brightness and the perfect fit.
as mentioned in the other thread we participated in where i took some flaming (what else is new around here
) like ANY led
, they will blink when you start the car, but you can have it coded out.