There are several classifications of street light controllers? How should we choose?

There are many types of street lamp controllers, and their functions and quality are uneven. The following is a brief discussion about the types and applicable places of common street lamp controllers on the market, for your reference when choosing. .
1. Light-controlled non-intelligent street lamp controller
Generally, a photoresistor or photodiode is used. According to the brightness of the ambient light, through simple comparison, delay and drive circuits, the fixed mode street lamp control such as turning on the light at dark, turning off the light at dawn and turning off the light with delay can be completed.
Main advantages: low cost (the price is tens of dollars not more than 100 yuan).
Main shortcomings: low technical content, easy to be affected by external unnatural light, causing abnormal switching of street lights, requiring regular maintenance.
Applicable occasions: The number of advertising lights, decorative lights and other street lights is small, and a single controller is installed in an outdoor place.
Two, (light control type) time controller
The time controller comes with a light control probe, which can be used for street lamp control. The price is generally around one hundred yuan, and the advantages and disadvantages are basically the same as the above products, except that the product reliability is relatively higher and the time control is more flexible.
Applicable occasions: The number of advertising lights, decorative lights and other street lights is small, and a single controller is installed in an outdoor place.
3. Longitude and Latitude Intelligent Street Light Controller
Generally, a microcomputer (microcomputer) is used as an intelligent control unit, a clock chip is used as the control reference, and the control basis is based on the dark and dawn time rules of the user's area (longitude and latitude), and the control mode and light switch time set by the user. Fully automatic switch control of all outdoor lighting appliances such as street lights, landscape lights, advertising lights, outdoor decorative lights, etc. It is an upgraded product of light controller and clock controller.
Main advantages: 1. There is no photosensitive element, and it is not affected by external light interference and installation position. The light switch time can be adjusted automatically according to the different days of the day and the time of the day and the season. 2. High technical content, high reliability and powerful functions. The price is moderate (generally 500-1000 yuan), so the performance-price ratio is very high, and it has become the mainstream product for street lamp control.
Applicable occasions: all outdoor lighting places.
Four, intelligent street light controller
The intelligent street light controller developed by the electronic company, the controller also belongs to the longitude and latitude intelligent street light controller category, but the function is more complete than the longitude and latitude street light controller.
Main advantages: 1. The price is favorable, the company develops itself, and the manufacturing cost is relatively low. 2. The product has good stability, adopts all-round anti-interference and fault-tolerant design of software and hardware, uses relays as control devices, and designs resistance-capacitance absorption circuits to ensure product stability. 3. Complete functions, with light control auxiliary control function, automatic time adjustment function, no manual time adjustment for life. It can also be used with electronic intelligent street light control software to truly save energy.
Suitable places: all city roads and street lights.