Power post fast, 1-step connection. 2-1/4 in id accepts conduit of different sizes. Made of impact and corrosion-resistant PVC, suitable for wet locations. No unsightly junction boxes or time taking assembly. Just a trouble-free installation. Designed for line voltage (120 VAC) landscape lighting. Eliminates need for above or below ground boxes. Built-in stabilizer removes need for concrete. Accepts 1/2 NPSM thread. UL and cUL listed us patent no. Des. 359,570 Canada patent no. 76774.