a few people have asked so I have pictured sidelight comparisions on how bright diff types of led are , I have had to reduce the voltage to 7v as the higher brighness ones just kill the camera and just produce a white blob.

Left Bulb , Budget Led Sidelight , Basic led Technlogy , Plastic Contruction.
Middle Bulbs , Better Construction , Superflux led Technology , Plastic and ABS Contruction.
Right Bulb , Advanced Construction, Hi Power , Ceramic and Alloy Contruction.

* Please Note the high power bulb does not work too well at 7v it is much brighter than the Superflux bulb at 12v+