for my parents. They live in the mountains of Colorado, at the end of a road, in a canyon, nearest neighbor is 1/2 mile away - it's dark! They have bears on the property, sometimes nightly, and an occasional cougar. Can you suggest a spotlight for dad to use when the dog starts to bark? Needs to be battery powered - alkaline or rechargeable. Needs to be under $50. Suggestions would be appreciated.