In the daytime, put the flashlite on the floor with the beam off. Let him explore it as much as he's willing, don't force him, and when he makes it up to it and sniffs, give him a "Good Boy!" Leave it on the floor, and let him get used to it for a couple of days.
Next, when he's lost his fear of the light with the beam off, during daylight, turn the beam on for a few minutes. You can see where this is going, you want to gently (emphasize gently) and rather gradually desensitize him. Let him work it out in his own good time. Eventually, he'll see that it isn't going to hurt him, that it's isn't really anything to be afraid of. Your role can be to reassure him, and reward him with 'good boys' and an occasional treat.
Most dogs are so easy to train using gentle methods--which is what the Dog Whisperer is all about.
Your dog, I've read, is pretty fragile physically. Small thin bones. Be careful around big dogs that can inadvertently injure him.
My new Std. Poodle puppy discovered her reflection in the full length mirror today. That was pretty hilarious!
BTW, I met a mini pinser a couple of weeks ago. I was very impressed with this little dog. Very friendly and quite calm. Not at all a small dog personality.

The one I met would be an incredibly easy dog to obedience and agility train.
[This message has been edited by Brian Lamberts (edited 08-04-2006).]