Just recently completed this meter clock. The meters are housed in a reclaimed post that I wrapped with steel straps and bolted to it. The time can be adjusted by touching the bolts on the front of the post. The top two bolts are for hour + and hour -, the bottom bolts are minute + and -. There is also a bent over nail in the top of the post. This nail turns on the lights and increments them through several levels of brightness before turning them off again.