 
Can be used to activate  Celesthium Light Beamer and
Celesthium Light Beamer and  NOT Gate. It can only be placed on the sides of blocks and has a quick recovery. Use a
NOT Gate. It can only be placed on the sides of blocks and has a quick recovery. Use a  Wrench on it to switch to loop mode, toggling the ON/OFF state at intervals.
Wrench on it to switch to loop mode, toggling the ON/OFF state at intervals.
Can be crafted in  Incomplete Crafting Table or
 Incomplete Crafting Table or  Crafting Table.
 Crafting Table.