8m lockable pneumatic tripod telescopic mast street light pole for wind turbine and LED lights

 Pneumatic masts are a type of elevation solution using compressed air to raise the central column to its extended height. The masts can either be locking, which each section locks into place once it reaches its maximum extension - designed for safety and long term use, or non-locking where each section sits on cushion of air for short time application

---------3 different models

Model"AT8"---no cable and no lock, for Short time using and small head load.
Model"AT9"---with lock. for long time using and large head load.
Model"AT7"---with cable. for mounting camera, lights or antenna.

If no electricity and head load is not heavy, lift control could be foot pump or hand pump---manual lift.

If thers is electricity and head load is heavy, lift control should be air compressor, easily and quickly.