High-pressure sodium lamp or metal halide lamp is usually used as the main light source. There are two reasons for choosing this type of lamp. First of all, everyone who knows about lamps knows that high-pressure sodium lamp has the characteristics of high brightness, wide viewing angle and LED is different. Its composition is only two parts, namely, beads and power supply. The probability of damage on accessories is very low. As we all know, the principle of LED light source is very low. In terms of service life of 50,000 hours, even if it can not reach that, it will not be much different, which in terms of service life is many more years.

In fact, the price of LED lamps is not as expensive as people think. In the long run, it is cheaper than other lamps because of its long life and low power consumption, which can be called a long-term benefit of the last investment. Therefore, it is recommended to choose LED products when installing light source on high pole lamp, because many fake sodium lamp projectors often have problems, high pole lamp lifting is very troublesome, often bad is time-consuming and laborious, and must be carefully selected when purchasing.