Odyssey 925 and Alternator enough

I am going to run 6 55watt halogen lights, no stereo but maybe a GPS. Will the 925 and the alternator be enough power to run this set up?
I run through the woods and brush and don't want to clean off some expensive hid's that's why the halogens plus I already have them. I have read all the posts and am somewhat confused by what I might need. I appreciate your patience and your help!