I've used a small Gallagher M150 on the horse pasture behind the house. Lightning took it out and was looking to replace it. If it's like anything else, brands can change over a few years. The Gallagher M150 (AC unit) is 1.5J and $111 @ Jeffers. Found the Stafix SX1 (dual - AC and 12v) for close to the same price. I've always heard Gallagher is one of the best - what do you guys think?