i would suggest you check with the angel eyes mfr if their units will support HID. I bought a pair of them off Ebay for £120 + Del , they came with bulbs. A night mare to fit and it did not fit perfect.
The unit I bought had a 'Danger''Warning' not to install HID in them.
So its best to check before buying from the mfr....
The one I fitted, gives a stronger and wider beam. I might try the Xenon bulbs that Halfords make and see if it makes any difference