Pengenalan
If you are a B2B buyer who is purchasing Pemacu LED for street and highway lighting projects, you should know that not all drivers are the same. Road lighting is one of the most demanding applications in LED drivers. It needs to be turned on for ten to twelve hours every night, and it has to face rain, dust, extreme temperature and voltage surges, and it has to be used for many years without much maintenance.
If the driver is not selected correctly, problems such as premature failure, flashing lights, and high maintenance costs will come to your door. If you choose the right, the lighting system can run stably, consume less energy, and ensure long-term reliability.
This guide is about several key indicators to be considered first when choosing LED drivers for street and highway lighting. From output power, surge protection, to dimming compatibility and efficiency, we will clarify these most important aspects one by one.
Unique Demands of Street and Highway Lighting Applications
Street and highway lighting is different from indoor or decorative lighting. The environment is relatively harsh, the operation time is long, and the impact of failure is also great.
24/7 exposure to the elements – Rain, snow, dust and moisture have always existed, and the driver must be completely sealed to block the moisture. Most road lighting requires an IP66 or IP67 protection level driver, which can withstand strong water column jets or short-term water bubbles.
Wide temperature swings – The driver installed on the lamppost may reach minus 40°C in winter, and can reach more than 60°C in summer when exposed to the sun. The operating temperature range is a very important indicator.
Voltage surges and lightning strikes – Road lighting systems are easily hit by power grid surges and lightning strikes. Now street lamp drivers generally require 6kV line-to-line and 10kV line-to-ground surge protection levels.
Long operating hours – Street lamps are generally on from dusk to dawn, ten to twelve hours a day, which is more than 4,000 hours in a year. Reliability and thermal management should not be ambiguous.
Smart city integration – Now road lighting is increasingly connected to the network, and the driver needs to support the dimming protocols of 0-10V, DALI-2 and D4i in order to do remote monitoring and energy management.
Key Specs to Check First
Output Wattage and Current Range
The first step in choosing a driver is to mat the output with the needs of lamps. The power difference of street lamps is quite big. The streets in residential areas are about 30W, and highways and main roads are more than 300W.
Most street lamp LEDs use constant current drivers, so first confirm whether your lamp needs constant current or constant voltage, and find the kind of driver with adjustable output current, so that different LED loads can be flexibly matched. The 30-50W driver is suitable for 6-8-metre lampposts in residential areas, and the 80-100W drive is suitable for 10-12-metre lampposts on the main road.
The output current range is also very important, which determines your flexibility under different LED loads. WEHO’s XLG series has two outputs, constant voltage and constant power, with a power of up to 350W, and 24V, 36V and 48V voltage specifications are available.
Input Voltage and Surge Protection
The road lighting system often encounters voltage fluctuations and lightning induction surges, and the driver can withstand both ends.
If the input voltage range is wide, such as 90-305VAC, the same driver can be used in different regions, and the voltage drop can also be withsusted. For surge protection, the industry standard for road lighting is 6kV line-to-line and 10kV-to-ground line. The higher the protection level, the greater the chance of sustaining in thunderstorm weather
WEHO’s XLG-350W series protection functions are relatively complete, with short circuit, overload, overvoltage and overtemperature.
IP Rating and Operating Temperature
The IP level indicates the degree of sealing of the drive to solids and liquids.
IP66 can withstand strong water column jets, IP67 can withstand soaking in 1 metre deep water, and road lighting is often washed by rain and high-pressure water guns. IP67 is the first choice.
The working temperature range should be at least -20°C to +60°C, and -40°C to +70°C is more ideal if the environment is more extreme. WEHO’s XLG series is fully sealed aluminum shell, IP67 protection, and the working temperature is -20°C to +60°C.
Dimming and Smart Control Compatibility
Intelligent road lighting is the future direction, and the driver must support dimming and control protocols.
0-10V is the most basic, and DALI-2 and D4i are more complete, which can control and report data. The standby power consumption of the driver with dimming to off function is less than 0.5W. NFC programming can configure parameters without power-on.
WEHO’s LED driver supports a variety of dimming options, and the intelligent lighting control system is also suitable.
Efficiency and Lumen Maintenance Support
Efficiency directly affects the electricity bill and heat output. Street lamps need to run for thousands of hours a year, and not a percentage point can be wasted.
Choose a driver with an efficiency of more than 90%. Now the better one can achieve 94% to 95%. A power factor higher than 0.95 can reduce reactive loss, which is also required by power grid compliance. THD below 20% means cleaner electricity and less interference.
The efficiency of WEHO’s XLG-350W series is 94%, and the power factor also meets international standards.
Certifications and Standards for Roadway Lighting
Before buying, make sure that the driver meets the standards required by the target market.
IEC 61347-2-13 is the most core safety standard for LED drivers. The European market uses EN IEC 61347-1 and EN IEC 61347-2-13. EN IEC 61547:2023 controls the electromagnetic compatibility immunity of lighting equipment, which has become mandatory in the European Union since March 2026. IEC 61000-3-2 Class C is aimed at the harmonic emission requirements of lighting equipment exceeding 25W in the European Union. EN IEC 62384 is the performance requirements of LED drivers.
WEHO’s products are CE and RoHS certified and meet international safety and environmental protection standards.
Choosing a Driver for Different Pole Heights and Wattages
The power driver to choose depends mainly on the height of the lamppost and the type of road. You can refer to it as like this:
| Pole Height | Road Type | Typical LED Wattage | Driver Power Range |
| 3–5 meters | Pathways, gardens | 10–20W | 20–30W |
| 6–8 meters | Residential streets | 30–50W | 50–75W |
| 8–10 meters | Collector roads | 50–80W | 75–100W |
| 10–12 meters | Arterial roads | 80–100W | 100–150W |
| 12+ meters | Highways, major roads | 150–300W+ | 150–350W+ |
In fact, the principle is not complicated. If the lamp pole is high, the luminous flot can’t keep up, and the illumination of some areas of the road surface is not enough. Therefore, the power should be sufficient, but the bigger the better. Under the premise that it can meet the lighting requirements, just choose the lowest power. Low lampposts with high-power lamps are easy to glare, which will also cause light pollution and disturb people. The surge protection level of the driver used on the highway is higher. 6kV/10kV is relatively stable, and the working temperature range is also wider.
Soalan Lazim
What specs matter most for a street light LED driver?
The power should be at the same as the lamp, surge protection should be at least 6kV/10kV, IP67 protection, working temperature range should be at least -20°C to +60°C, the efficiency should be more than 90%, and the dimming protocol should be supported.
How much surge protection does a street light driver need?
For road lighting, the line-to-line should be at least 6kV and the line-to-ground should be at least 10kV, so as to block lightning strikes and power grid surges.
Can street light LED drivers be dimmed remotely?
Yes, the current street lamp drivers support 0-10V, DALI-2 and D4i dimming protocols, and some of them also have NFC programming and autonomous dimming schedule functions.
What is the typical lifespan of a street lighting LED driver?
The rated life of good-quality street lamp drivers is generally between 50,000 and 120,000 hours. WEHO’s drivers have all undergone full-load ageing tests, and long-term reliability is guaranteed.
Kesimpulan
Choosing a suitable LED driver for street and highway lighting ultimately depends on matching the specifications of the driver with the application needs. First, look at the output power and current, and then confirm whether the surge protection is sufficient. 6kV/10kV is a basic requirement, and the protection level should also be clearly seen. The open-air installation of IP67 is relatively stable. Whether the working temperature range can cover the local climate should also be confirmed. If you want to do intelligent control, check the dimming compatibility, efficiency and recognition. The certificate can’t be left behind.
If you choose the right driver, the street lamp will be on year after year. If you choose the wrong one, you will have to return it for repair and replace it, and you will have to be told by the customer.
WEHO’s waterproof IP67 LED driver product line is relatively complete, from 100W to 350W or more for street and highway lighting. The XLG series has constant voltage and constant power output, fully filled aluminum shell, wide operating temperature range, short circuit, overload, overvoltage and overtemperature protection. Hubungi Weho now to help you find a suitable road lighting LED driver.
