Complete guide Honda CR-Z headlights installation

Honda CR-Z (ZF2 model SEA). Changing High and Low Beam headlights without remove front bumper & whole headlight housing. Just FYI, light performance ranking: halogen bulb, LED & HID. Also another reason, why I don't change HID to LED is due to ballast & its connector. Yes, there is guys able change to LED but you need to modify & cut existing wires. So the choice is up to you. I would rather keep the wires at it is.