Now I'm no expert .........
But, what I've found with using bright white type light (like the super powerful LED torches etc) is that they are on or off.
No good for having a quick peep around like a Striker with a dimmer turned almost off, if you're squeaking foxes (for wildlife observation purposes, no dog involved) then those bright lights light the world up and everything scarpers.
How long does the HID take to come on, when you press the button does it blink then come on or is it instantaneous?