Thanks for the replies.
I h ave a couple of Infinity Ultras on order, and wondered if the Sonic was as good. Now I know enough to know I do not want one.
I really like the Dorcy AAA and just bought a couple more at Walmart. While I was there the clerk showed me a small light his wife had given him. It looked like the ones sold in Target with the Eddie Bauer name. He said they had been on sale for 4.99 at Big 5.
I went there and they had 2 left so I bought them both. When I got home I discovered that one of them had a bad battery. I went to Radio Shack thinking it would be 50 cents, and found it was $3.18 with tax. Since the lights use three of them, AG 13 Button Cells, I am not going to get any more lights that use them.
Yes, "A fool and his money are soon parted."
Jerry