Lift high lamp and what is the difference between fixed high lamp?

High lamp has a lift and stationary, so what kind of difference, with light, to know about the below. 1, we look at the literal meaning, is a lift, one is fixed, so they are two kinds, one kind of

high lamp has a lift and stationary, so what is the difference between, with light, to know about the below. 1, we look at the literal meaning, is a lift, one is stationary, say so, they two kinds, one kind is not lifting system, a kind of is not, their difference is the lifting system. 2, up and down their light pole diameter size is different, because lift lifting system is loaded. So light pole minimum diameter larger, stationary, there is no this limit, can according to customer's right in asking for, free transform and caliber. 3 and maintenance of security, stationary high lamp general points and take the ladder ( Maintenance personnel with up and down) And without the ladder, or truck crane will be needed for servicing. And lift pole light, because their own lifting system, so we in the ordinary maintenance, maintenance, can make light, lamp plate lifting up and down, in this way, our maintenance staff, don't need to high-altitude operations, security also greatly enhanced. , LED street lamp