Hydraulic lift is operated by a hydraulic ram. The hydraulic pressure for it is obtained from a near by electrically driven pump. Compared with rope-hoisted lifts, hydraulic lifts have many advantages, they need no overhead hoist and the sitting of the pumps and control room is not critical. They are smooth and accurate in operation, need little maintenance and have no counter weights so the lift shaft is smaller. They can be installed in an existing building with out strengthening it because all the load is carried on the ram and this transfer it to the ground through a borehole in the cellar. Bore holes are feasible for low buildings for all tall ones the ram can be installed at the side of the lift shaft with the cage load carried by rope from the ram over a pulley at the top of the building.
Hydraulic Light Towers uses four metal halide lights with quick disconnect fixtures and plug in ballasts. This model is equipped with dual winches that hoist a 30 foot telescoping galvanized tower. Electrical connection to light tower is by retractable coiled power cord. Lighting fixture can revolve 270 horizontally and vertically. To adjust focus area, lighting area may reach 50000-70000 square meter. Damping design and compact structure ensure on bump road and in rain or wind.