I have used, and tested all 3.
I see slight variations in brightness. but sometimes its more the voltage and the star post construction.
Ive done games with all new star posts, and a few looked off....it was the plastic in the star post itself.
I know Comet, and PDI, I believe Cointaker and others will all light with 6.3V and 12V from flasher.
I find PDI well constructed, slightly better than the others, but one needs to look at cost, solder, and labor.
I know I made Comets to work with Matrix, so 3 Posts in a sling can be wired above or below, direct, or with a plug and play Matrix
Bulb and connector.
While a few games have 20+ Stare Posts, and Aardvark shared a beautiful BSD with all posts lit, I have found just doing slings,
and those in the lower playfield line of sight were most noticeable.
By the 100, they are $1.99 at Comet, and Other then red, I have been using white or warm white mostly to light blue, purple, etc....
a White light can light almost all posts pretty well, and Ive used extras as spot lights, back box, outhole, pretty much anywhere with matrix. They are flat and hidden easily.
The smaller rings do fit inside the post, from PBL, and PDI? One needs to cut a notch in the post, but the diodes, and light ouput on these are about 30% or so less than the others....
Hope this is of help....
Lockport, IL
