The biggest feature of a split type lamp is that it can flexibly pair and combine various main components into any system, and the expandability of each component is also very strong. Therefore, the split type system can be large or small, and can vary infinitely according to user needs. Therefore, flexibility is its main advantage. However, such pairing combinations are not as user-friendly for users, as the components sent by the manufacturer are all independent parts, which increases the workload of assembly and wiring. Especially in situations where many installation workers are not professional, the probability of errors greatly increases.
So, split solar lights are suitable for systems with high power or long working hours.
In response to the high cost and difficult installation of split type lamps, we have optimized and proposed a solution for two body lamps. The so-called dual body lamp is a type of lamp that integrates the battery, controller, and light source into a single unit. When combined with separate solar panels, it forms a dual body. Of course, the design of the two body lamp is centered around lithium batteries, relying on their advantages of small size and light weight to achieve.
The advantages of solar powered dual body lamps
1) Easy installation: As the light source and battery are pre connected to the controller before leaving the factory, the LED light only comes out with one wire, which is connected to the
Solar Panel. This wire needs to be connected by the customer at the installation site. Three sets of six wires have been converted into one set of two wires, reducing the error rate by 67%. Customers only need to distinguish between the positive and negative poles. Our solar panel junction box is marked with positive and negative poles in red and black to prevent customer errors. In addition, we also provide error proof male and female plug solutions, which cannot be plugged in with positive and negative reverse connections, completely eliminating wiring errors.
2) High cost-effectiveness: Compared to the split type solution, with the same configuration, the two body lamp lacks a battery casing, resulting in lower material costs. In addition, customers do not need to install batteries during installation, which will also reduce installation labor costs.
3) There are multiple power options and a wide range of applications: With the popularity of two body lamps, various manufacturers have launched their own molds, and the choices are becoming increasingly diverse, with sizes of all sizes available. So, there are also many options for the power of the light source and the size of the battery compartment. The actual driving power of the light source can be found in the market ranging from 4W to 80W, but the most concentrated system is still the 20~60W system. In this way, solutions can be found in the courtyard of small homes, rural roads in the middle, and main roads in towns and villages, all of which provide great convenience for the implementation of the project.
Limitations of dual body lamps
Although dual body lights have gradually become the main force of solar street lights, there is no end to them, and they inevitably have some limitations.
1) Limitations of large systems: The size of the battery compartment is already fixed when the lighting fixture is molded, so when encountering high-power light sources, high working hours, and rainy weather requirements, the battery compartment is inevitably stretched thin. So it can only be supported between high power, long working hours, and long rainy days, requiring one or two concessions or balancing the relationship between the three to come up with a relatively balanced system.
2) Restrictions in high-altitude regions: Due to the fixed installation position of the lithium battery in the two-piece lamp and the fixed size of the battery compartment, the possibility of solving the battery temperature by burying it underground in high-altitude regions is zero. The normal operation of the system at low temperatures can only be achieved through special low-temperature batteries, but the price of low-temperature batteries themselves is relatively expensive, which brings certain inconvenience to the use of dual body lamps in high-altitude areas.
An integrated lamp is a lighting fixture that integrates the battery, controller, light source, and solar panel into the lamp. It is more thoroughly integrated than the two body lamp, which indeed brings convenience to transportation and installation, but also has certain limitations, especially for areas with relatively weak sunlight.
Advantages of integrated lights
1) Easy installation, no wiring required: The integrated lamp has already pre wired all the wires, so customers do not need to wire them again, which is a great convenience for them.
2) Convenient transportation and cost saving: All components are gathered together and packed in one cardboard box, reducing transportation volume and saving on shipping costs.
Solar integrated light
Limitations of integrated lights
1) Low charging efficiency: Due to the limited size of the lamp frame, the size and power of the solar panel are also fixed. When the lamp is installed on the Lamp Post , in order to obtain a larger coverage, the lamp is generally inclined at a 15 degree angle to the ground. Since the solar panel is fixed on the back of the lamp, the angle it obtains can only be about 15 degrees of the lamp. We know that at different latitudes, solar panels need to be angled differently to obtain maximum sunlight, and solar panels with lighting angles cannot achieve ideal angles (except near the equator), which will inevitably affect the power generation efficiency of solar panels. This is particularly important for China, where most regions are located at mid latitudes. The tilt angle of solar panels in most parts of China needs to be designed to 30-45 degrees to achieve maximum sunlight radiation, and a tilt angle of around 15 degrees can already result in a difference of 2-3 times. Even more serious is that solar panels cannot obtain a suitable orientation. The direction of the road determines the orientation of the solar panel in the integrated lamp, because the solar panel is oriented in the same direction as the light source, and the light source can only face the road surface, so the solar panel can only face the road surface. If the road runs east-west, it's okay (in China), with street lights installed on the east side and solar panels facing south. But if the road is facing north-south, the solar panels can only face east or west, which will once again affect the power generation efficiency.
2) Low lighting efficiency: There are three reasons: 1. Limited light source power. The size and power of the solar panel in the integrated lamp are limited by the size of the lamp, which means that the daily power generation is limited, and the electricity consumption is also inevitably limited. The power of the light source or the working time/mode are also limited. 2.The angle of the lighting fixture is limited. As mentioned earlier, the tilt angle of the integrated lamp must accommodate the angle of the solar panel, so in many places, the angle cannot be adjusted arbitrarily according to needs. 3.The length of the support arm is limited. Most integrated installation methods are directly fixed on the main pole of the lamp post, and the lamp itself is the support arm (as shown in the figure below). However, the length of the lamp is fixed. If the lamp post is far away from the curb, the light source cannot extend above the road surface, which will affect the area covered by the street lamp.
3) The sensing function of chicken ribs: In order to minimize consumption to the greatest extent possible, most integrated light systems will be equipped with human body or microwave sensing. However, due to cost limitations, the sensitivity and sensing range of the equipped sensor head are not particularly good. Often, the light source only enters a high brightness state when the vehicle or pedestrian has already walked under or is very close to the street lamp, and the lighting function of the street lamp cannot be well reflected.
4) High after-sales cost: Once the street lamp is damaged, it must be disassembled as a whole, and it is not possible to selectively remove a certain component, so the after-sales cost is relatively high.
5) High selling price: Although the highly integrated approach saves some material costs, the price of integrated lights on the market is not low, and even two body lights with the same configuration are much more expensive.
Application of integrated lights
Although integrated lights have some limitations, they are still a good solution as long as the application area and location are suitable.
1) Applicable regions: Low latitude areas with excellent sunshine. Good sunshine can alleviate the problem of limited solar power, while low latitudes can solve the problem of solar panel tilt angle, so you will find that the vast majority of integrated lights are exported to regions such as Africa, the Middle East, and Southeast Asia.
2) Place of use: courtyards, paths, parks, residential areas, and other main roads. These small roads mainly serve pedestrians, who move slowly and have low lighting requirements. Integrated lights can well meet the needs of these places.
