You need to be more specific. Are you comparing 4 of the same LED against 1 of the same LED? Like 4 Cree's, vs 1 Cree?
Did you take that picture? If so, would you give me permission to use it in my review of the NDI (hoping I get it before next christmas)? It'll save me from doing a macro shot myself...If it has this warning on it it should be bright!
http://i253.photobucket.com/albums/hh63/erndog08/NDI044Small.jpg