They can be different hight based, and on it"s top, you can mount halogen lamps, LED lamps for lighting.

the most highest we can do is 12m.

The material for the mast is made of Aliminum, such makes the mast strong enough to stand strong wind speed.

     Senken vertical telescoping masts are designed and manufactured for performance and safety. Vertical-mounted masts can be used to elevate a variety of payloads including lighting, camera, or antennas. Vertical mounted telescoping products are constructed of high strength heat-treated aluminum tubes and collars with low friction synthetic bearings for long dependable service and can be mounted internally or externally on a vehicle.

     The Stiletto mast, used for military applications, is constructed of durable, high strength carbon fiber composite tubes.

    Mast can be made of 3.5m, 4.5m, 5.5m, 6.5m, 7.5m, 8.5m, 9.5m, 10m, 12m high. At the top of the mast, you can mount 2pcs of lamps, 4pcs of lamps, or camera, and the other things.