The LKG-40W is a high-performance solar street lamp with medium power that is part of the LKG line. It is intended to light roads that are 6 to 8 meters above the ground. There is a 60W monocrystalline silicon solar panel (with a conversion rate of 18%–20%), a 3.2V/100AH large-capacity lithium iron phosphate battery, and an SMD 3030 LED light source that gives off 210LM/W of light. The battery and processor are in different sections in this modular split structure. It supports infrared tracking and time-segment intelligent dimming, has an IP65 grade for protection, and is only 3.7cm thick. The lamp measures 996 mm x 345 mm x 135 mm and can be used on country main roads, industrial park side roads, and other places. It has a long range, uses no electricity, and doesn't need to be wired in.

01
Dual breakthroughs in battery life and brightness
The 100AH ultra-large battery capacity (the largest in the series) supports 3 days of rainy-day endurance (12 hours per night); with a 40W power output and 8,400LM luminous flux, it covers an area of 60 square meters, and the brightness is 50% higher than that of traditional 40W sodium lamps.
02
Fourth-level intelligent dimming and energy-saving function
Infrared sensing + time-based tiered control: When people or vehicles approach, the power instantly reaches 100% (40W). Once they leave, the power gradually decreases to 30% (12W) in 30/60/90-minute segments. The overall energy-saving rate is over 60%.
03
3-minute rapid maintenance
The battery compartment can be easily removed and replaced independently. The controller adopts a modular plug-and-unplug design. Fault repair does not require professional tools, and the process takes less than 8 minutes.
04
Fortress in an Extreme Environment
6063 aluminum alloy radiator with double anti-corrosion paint coating, passed 240km/h wind tunnel test (under 14-level typhoon conditions); -30℃ low-temperature battery automatic startup technology, suitable for high-altitude mountainous areas.
Detailed parameters
| Solar panel | 18V/60W Monocrystalline Silicon | Size: 988 × 340 mm |
| Battery | Lithium iron phosphate 3.2V/100AH | The largest battery of the same series |
| Light effect | 210LM/W | 8,400 lumens of total luminous flux |
| Overall size of the lamp | 996×345×135mm | |
| Led chip | Philips3030, 200PCS | |
| Controller | MPPT, PWM selectable | |
| Lighting mode | Infrared sensing + segmented time control + intelligent control | |
Application scenario




Lighting for rural main roads
Two-way two-lane rural road (pole height 6-8 meters), with a 70°×140° asymmetric light spot achieving uniform illumination at a 25-meter spacing, with a uniformity of >0.65.
Water-facing / High-humidity areas
River embankment road, port auxiliary road, IP65 + 4K lightning protection design to resist dampness and salt fog, streamlined body reduces wind resistance by 30%.
24-hour operation area
Logistics warehouse passageways, industrial factory areas, time-based dimming matching for peak operation periods (such as full power during night shifts, 50% during daytime).
Unconnected public node without power grid
Bus stops and open-air markets. With a 100AH battery, the place can ensure continuous lighting throughout the night for three consecutive rainy days.
Product features
The LKG-40W has three main competitive advantages: it can last for a very long time in the wet season, it can withstand wind on any surface, and it only needs minimal upkeep. It has become the standard choice for lighting country roads and industrial parks because of this. Its ideal 60W solar panel to 100AH battery ratio ensures high light output while lowering the total life cycle cost by 35% (compared to regular electric lamps). This makes it perfect for low-carbon park building and road improvements in counties and towns.
Optical precise control
The light-blocking lens limits upward light overflow to less than 5%, and the rectangular light spot precisely covers the road surface, eliminating sky light pollution.
Revolutionary design of the project
The inclination angle of the 988×340mm solar panel can be adjusted within ±20°, suitable for latitudes ranging from 20° to 45°; it supports Ø60-114mm round rods/U-shaped arms installation, and there is no need for welding when retrofitting old rods.
Life-cycle durability
The lithium iron phosphate battery can be cycled more than 2,000 times (approximately 8 years), with an aluminum substrate and silicone seal for the light source, and the light attenuation is less than 5% over 50,000 hours.
Smart IoT Expansion
Reserve a 4G module interface, supporting remote control of lighting strategies, battery level alerts and fault diagnosis via the APP.
About our company
Shenzhen Benwei Lighting Technology Co., Ltd is a well-known company that designs, develops, makes, and sells high-tech goods, including LED lighting products. The plant where we work opened in 2010 and is in Shenzhen.
Our address
3rd Floor, 5th Building, Hebei Industrial Park, Hualian Community, Longhua District, Shenzhen, China

