evilsim is correct,

orange 1200/shoota... the original lights are sealed beam.... you cant even change the globes.... that's terrible advice

if you change from the original sealed beams you need to wire in a relay so that you can have a power source that does not go through the original loom/fuse box as it is not adequate

H4 is a great upgrade for all dattos

HIDs in driving lights are illegal (unless your car has sensors in the suspension to dip the lights when the angle of the car changes) and completely unnecessary! i use them in my spotlights in my rally car but even the rally scrutineers ensure we do not have them in the normal lights at each event. there is absolutely no need for HID light power in a road car

to wire in HIDs is easy but not plug in one end then plug in the other, you need to have your relays setup to power them and you need to make a mount to hold the ballast box, then often you need to modify the light/globe to suit also (particularly on spot lights)