Well your rings or projector may be lowered as in not enough power in it because halos arnt really that bright I had angel eyes and after a couple years they dim down and don't really work beat thing to do is switch out the rings or the projector so they shine brighter I honestly think they naturally die though
If they're CCFL Halo's, then they should be about as bright as a flourescant (sp?) light bulb. I have CCFL's, and they're bright as hell. I can drive at night with them without having the headlights on, although it's not recommended as they just barely provide enough light to drive by and see where you're going, but.. it is possible. I ordered mine a while back from a website called carid.com. Hope this helps.