Are the flashlights in your inventory? If so it might be possible to create a removal order for the flashlights and have them sent to a relief organization directly. It may not be possible - it is just an avenue to investigate. That would cost you only 20 to 30 cents each.
Doing this might not even be a violation of Amazon rules since you are not selling them - you really are recalling them for donation.
If you are thinking of buying them on Amazon and shipping it might be more efficient to just make a cash donation.
Every major corporation has a Corporate Philanthropy group. You might try calling Seattle and asking to talk to them.
In any event, good for you.