Powered Spawner Feed The Beast Wiki
The Powered Spawner is a block added by the EnderIO mod.. A machine that spawns creatures when supplied with energy. It can spawn or capture mobs as far as 4 blocks away. It must be combined with a Broken Spawner on an Anvil to set the type of mob it will spawn. Broken spawners can be acquired by breaking a vanilla Minecraft spawner (with silk touch).