News

Good news. We are back to work from March 2nd, 2020 after the coronavirus. Even though, our life and business have been affected due to the epidemic situation. We have full of confidence to recover our work gradually. Regarding the orders that before the Chinese New Year, we would like to arrange production as soon as possible. Thank you for your trust.

During the Chinese New Year Holiday, we are suffering a coronavirus which caused in Wuhan a month ago. At present, there are a few thousand people infected with the coronavirus. In the following days, there will be more and more people fall into the infectious disease. Under these circumstances, please do not come to China in the next future. In terms of orders that placed before Chinese New Year, we would like to arrange production and delivery as soon as possible. Maybe it will be delayed, please understand. Thank you.

We will have a great Chinese New Year Holiday. DE office will be closed from January 20 to February 9, 2020. We will be back to work on February 10, 2020. Best wishes to all of you and enjoy your time with family and friends.

In terms of the solar street light project, valuation fields is an important step during solutions design. DE team is professional to provide a favorable solution according to the local installation place. The key points including the width of the roadway, numbers of lanes, the width of the median, etc. In the results, DE team will provide a planning report including 3D rendering as well as a false color rendering for clients reference.

Happy New Year 2020. Best Wishes to you. DE Office will close on December 31, 2019, to January 1, 2020. We will be back to work on January 2, 2020. Thank you for all of our clients and looking forward to cooperating in the Year of 2020.

HAWT horizontal axis permanent magnet wind turbine DE-AW01 including 3 blades, laminar flow airfoil, the high lift-drag ratio with excellent performance. Reinforced glass reinforced plastic (FRP) blades with an optimized aerodynamic profile and structural design for low starting wind speed. The main engine and the rotating body use electromechanical integration design, which is the generator housing and the rotating body combination as a whole. The structure depends on each other to connect, increase the strength, and greatly reduced the weight of the material and the machine head.

Features of DE-SUF all-in-one integrated solar street light: 1- Aluminum alloy lampshade, corrosion resistance, IP65 waterproof protection grade 2- 360 view angle 3- Backup days up to 3 days 4- Elegant integrated design, easy installation, and maintenance. Turn on-off automatically 5- With the remote control, working power is adjustable

The reliability of DE-AW04 series VAWT is very high; there is no need to maintain regularly. But for the wind power generator-tower-electric transmission line system, we should check and maintain regularly in order to make the system operate well. 1. Check the dragline of the tower; If it loosens, we should taut (strain) them in time. Especially in these conditions: in the first three months (after setting up the tower); after the strong wind. 2. Check the connection point of the electric transmission line (fastness or not, corrosion or not). 3. Check and maintain the storage battery regularly according to the normal requirements. 4. Before the extremely atrocious weather (strong wind or typhoon) comes, in order to protect from unexpected things(danger), we should lay the tower down.

DE team is professional to provide specific solutions (Pro solutions & economical solutions) based on installation places and clients' budgets. Our solutions including traditional solar led street light, all-in-one integrated solar street light, all-in-two solar led street lamp, wall mounted solar street light, lithium battery built-in solar street light, solar garden/park street light. There are some important details needed to be considered when installing the system, such as back up days, working time per night, high-temperature resistance and low-temperature resistance. These points are taken into consideration when DE team designs the lighting system, which have an effect on the performance of clients' projects.

The place is very important for the wind turbine generated energy and safe in operation. The average wind speed is higher, the generated power is higher and the generator will generate more electricity. The wind energy is proportional to three cubed of the wind speed. For example, the wind speed of 5m/s can generate nearly twice more electricity (energy) than that of the wind speed of 4m/s.) The tower should be higher because the height from the floor is higher, the wind speed will be heavier, and the air current will be more stable. In the flat area, the height of the wind power generator should be above 6 meters. To air current, trees and some buildings will be the barriers (obstacles). Around the obstacles (barriers), there will be a high, wide, slow-moving and inordinate air current zone. We should avoid installing the PMG in this area.

As the world's energy crisis intensifies, all countries are seeking ways to solve the energy crisis. One path is to seek the use of new energy and renewable energy; the other is to seek new energy-saving technologies, reduce energy consumption and improve energy usage efficiency. Solar energy and wind energy are two direct, common, and cleanest energy sources on the planet. They are inexhaustible and useless. As the manufacturer, DE team is keeping new technology improvement and is specialized in high efficiency solar & wind energy applications. Passed ISO 9001 international quality management system certification and strictly follows the requirements.

Solar street lights turn on/off automatically. When the solar module voltage goes below the point of night time threshold voltage at sunset, the controller will recognize the starting voltage and turn on the LED lamp. When solar module voltage goes above the point of day time threshold voltage at dawn, the controller will recognize the starting voltage and turn off the lamp

The technical principle of VAWT vertical wind turbine is based on the airstrip theory. The actual calculation can select the section of the vertical fan rotation axis to calculate the model. According to the actual size of the blade, the distance between the rotation axis of each blade is N meters; the calculation of the aerodynamic coefficient is calculated by CFD technology. Principle The discrete digital method is used to solve the aerodynamic forces of the airfoil section. The Reynolds number flow vorticity distribution is compared with the grid method to form the theoretical results of numerical simulation of the Navier-Stokes equation at high Reynolds number.

300 Units 8M Wind Solar Hybrid Street Light Project Installation Finished. The lighting systems are fit for remote districts where is difficult to access the electric grid. In addition, the area with superior wind speed as well as solar conditions

The National Day is coming. DE Office will be closed from October 1st-7th, 2019. We will be back to work on October 8th, 2019 (Tuesday). Happy National Day and enjoy our life. If you have any emergency issue, please feel free to contact our email: info@cndelight.com

Basic components of an off-grid system including wind turbine, solar panel array, battery bank, off-grid charge controller and inverter. A solar panel array and wind turbine provide electricity to run the appliances in your home. Whatever you don`t need immediately is stored in the battery back. Since you are completely reliant on your own resources, the battery bank must be large enough to get you through at least 3 days without any solar or wind charging. You will need to plan your energy use using a load analysis so that the charging system and battery bank is large enough to meet your needs

Happy Mid Autumn Festival. DE Office will be closed on September 13rd, 2019, Friday. Best wishes to our family.

20w integrated solar street light testing before delivering to Columbia. It is a new design which is different from the normal integrated solar street light. There are two lights for the system, one is under the solar panel, another is inside of the pole. It will be attractive at night during operation. Designed by DE Team.

VAWT Wind Turbine Features: No massive tower required so construction costs are lower. No Yaw device required. Less noise than HAWT models. Higher airfoil pitch angle improves aerodynamics. Lower wind startup speeds. Larger swept area than HAWT`s with the same radius. No turning to face the wind so VAWT`s are ideal for turbulent conditions.