Published by admin06 01,2023

Traditional fishing boat lamp 1. The traditional fish lamp is generally 2000W halogen lamp bulb, which is characterized by high power and light weight. 2. Disadvantages are also very obvious, the consumption of power is too high, the loss of diesel is too large. 3. Short range, can not achieve directional projection, glare is large, affect the fishermen’s operation. 4. Single glass is easy to damage, increase the user’s use cost, in strong wind weather, will produce a certain risk. 5. The production of ultraviolet light will cause damage to human skin and eyes to a certain extent. Other led fish boat lights 1. Linear power supply, cheap price, but poor stability. 2. Domestic packaged light source, light decay fast, short life. 3. The fan is used for heat dissipation, which cannot adapt to the harsh environment of strong winds at sea. If the fan is damaged, the lamp bead will burn out. 4. No lens design, only astigmatism on the surface of seawater, lack of directional p...

Published by admin05 31,2023

What wood is used for basketball courts? The courts of all but one NBA team are composed of hard maple. Hard maple offers the most consistent playing surface and “bounce-back,” or shock resistance, to lessen fatigue on players’ knees and ankles. How much does a hardwood basketball court cost? The cost of a hardwood basketball court can vary depending on several factors, such as the size of the court, the type of hardwood used, the quality of the installation, and the location of the installation. The courts of all but one NBA team are composed of hard maple, which is known for its durability and ability to provide a consistent playing surface. The cost of a hardwood basketball court can range from $20,000 to $75,000 for a full-size outdoor court, and from $8,000 to $30,000 for a half-court. These costs can vary depending on the condition of the land, the drainage you need, labor costs, and the materials you choose. Concrete will cost you less than a polymeric rubber cour...

Published by admin05 30,2023

What is metal halide lamp? A metal halide lamp is a type of electric lamp that produces light by an electric arc through a mixture of metallic vapor and halogen gas. The lamp is a type of high-intensity discharge (HID) lamp, which is known for its high luminous efficiency and long lifespan. Metal halide lamps are commonly used for outdoor lighting applications such as streetlights, parking lots, and sports fields. They are also used in indoor lighting applications such as photography and television production, where they are valued for their ability to produce a natural-looking white light that closely matches the color temperature of natural daylight. What color is metal halide light? Metal halide light is typically a very cool white light with a color temperature ranging from around 3000K to 20,000K. The exact color temperature of a metal halide lamp can vary depending on its specific design and composition. Lower color temperature metal halide lamps (around 3000K) are often used...

Published by admin05 29,2023

What is TUV rheinland certification? TUV Rheinland certification is a process by which an organization demonstrates compliance with certain safety standards and qualifications for its products, management systems, manufacturing processes, and personnel. The certification is issued by TUV Rheinland AG, a technical test service and certification organization, based on an evaluation of the organization’s processes, products, and personnel. The certification process provides an independent assessment of the organization’s capabilities and helps to build trust with customers and stakeholders. What does TUV stand for? TÜV stands for Technischer Überwachungsverein, which means Technical Inspection Association in English. It is an independent organization that tests, inspects, and certifies technologies, products, and systems to ensure their safety and prevent potential hazards. The TÜV was established in Germany during the Industrial Revolution to address the need for independ...

Published by admin05 26,2023

What is UL? UL, or Underwriter Laboratories, is a safety certification company that was founded in 1894. UL is a global safety science organization that tests, certifies, inspects, audits, and advises on safety-related products, systems, and services. UL has a wide range of certifications, known as UL Listed Marks, UL Recognized Marks, and UL Classified Marks, which are based on industry-wide standards. These certifications indicate that a product or service has been tested and meets UL’s safety standards, and may also be recognized or classified by regulatory authorities in certain countries. UL is recognized as a Notified Body by the European Union for certain product categories, and is accredited by the International Accreditation Service (IAS) and the Standing Committee on Accreditation (SCA) of the International Electrotechnical Commission (IEC) for its testing and certification programs. Overall, UL is a well-respected organization that helps ensure the safety of product...

Published by admin05 25,2023

What grass is used on football fields? The grass most commonly used on football fields is perennial rye grass. This is because it is fast growing and can withstand the heavy and consistent use that football fields undergo. There are many different varieties of rye grass, and some are better suited to heavy use than others. In addition to perennial rye grass, some football fields may also use other types of grass, such as Bermuda grass or Bent grass. However, these are less commonly used than perennial rye grass. Why turf is better than grass in football? Artificial turf is often preferred over natural grass for football fields because it offers a number of advantages. One of the main advantages is that it is much easier to maintain than grass. Artificial turf requires much less maintenance, as it does not need to be mowed, watered, or fertilized in the same way that grass does. This can save NFL teams a lot of time and money, as grass fields can be quite time-consuming and expensiv...

Published by admin05 24,2023

What is DIALux software? DIALux is a software tool used by lighting designers and engineers to create top-quality lighting installations. It enables users to design, visualize, and simulate various lighting scenarios for architectural and urban spaces. The software provides a comprehensive platform for lighting professionals to create innovative lighting solutions that meet the practical and aesthetic requirements of their clients. It offers a range of features, including advanced rendering capabilities, photometric calculations, and energy analysis, making it an essential tool for lighting designers and engineers. How to use DIALux lighting software? Free DIALux EVO Course  What is DIALux EVO? DIALux EVO is a powerful software tool used by lighting designers and engineers for designing, calculating, and visualizing lighting for various applications. It is a comprehensive solution for lighting professionals, offering a wide range of features and capabilities. With DIALux EVO, user...

Published by admin05 23,2023

What is RoHS compliant? ROHS compliant refers to a product that complies with the European Union’s Directive 2002/95/EC, also known as the Restriction of the Use of certain Hazardous Substances in Electrical and Electronic Equipment (RoHS) directive. This means that the product does not contain more than the allowed amounts of certain hazardous substances, such as lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE), as specified by the directive. A product can be considered ROHS compliant if it has been tested by a third-party testing service and a letter of compliance has been issued by an employee of the company. What does RoHS stand for? ROHS stands for “Restriction of Hazardous Substances” in Electrical and Electronic Equipment. Why is RoHS compliance important? ROHS compliance is important for several reasons. The main reason is to protect the environment and public health by reducing the relea...

Published by admin05 22,2023

What is light pollution and why is it a problem? Light pollution, also known as artificial light at night, refers to the excessive or improper use of artificial outdoor lighting. It can take several forms, including glare or overillumination, which is direct light from the fixture, sky glow or the brightening of the night sky, light trespass, which occurs when light hits areas not intended to be lit, and clutter, which occurs when lights are grouped in an excessive or confusing pattern. Light pollution is largely a result of poor design, where the light shines out or up in addition to its desired direction. Light pollution is a problem because it disrupts the natural patterns of wildlife, contributes to the increase of carbon dioxide (CO2) in the atmosphere, disrupts human sleep, and obscures the stars in the night sky. It can also waste energy and increase costs for municipalities and individuals who have to pay for the electricity used to power the lights. In addition, it can crea...

Published by admin05 20,2023

What is color temperature in lighting? Color temperature is a way to describe the appearance of light provided by a light source, such as a light bulb. It is measured in degrees of Kelvin (K) on a scale from 1,000 to 10,000. The lower the Kelvin temperature, the warmer the light appears, while the higher the Kelvin temperature, the cooler the light appears. Color temperature is important in lighting because it can affect the mood and atmosphere of a space. It is commonly used in commercial and residential lighting applications, and typical colors temperatures fall on a scale from 2000K to 6500K. How to measure color temperature? One way to measure the color temperature of a light source is to compare its spectrum to that of a blackbody source. This is known as correlated color temperature (CCT) and it is defined as the temperature (in degrees Kelvin) of a blackbody source with a color that is most similar to the source being measured. CCT is a single number that can be used to spec...

Published by admin05 19,2023

What does LED stand for? LED stands for Light Emitting Diode. How LED works? LED works by passing an electric current through a semiconducting material, typically a diode, which then emits photons (light) through the principle of electroluminescence. The diode is made up of two types of semiconducting materials, p-type and n-type, which are joined together to form a p-n junction. When power is applied to the p-n junction, the electrons in the n-type semiconductor move towards the p-type semiconductor, creating a flow of current. As the electrons move through the diode, they release energy in the form of photons, which are perceived as light. The color of the light emitted by the LED depends on the energy of the photons, which is determined by the materials used in the diode and the temperature of the junction. LEDs are available in a range of colors, including red, green, blue, and white, and can be used to produce a wide range of colors and shades by varying the brightness of the i...

Published by admin05 12,2023

Capital One Arena is a state-of-the-art indoor sports and entertainment venue located in the heart of Washington, D.C. Situated in the bustling Penn Quarter neighborhood, the arena is easily accessible via the Gallery Place rapid transit station on the Washington Metro. Owned and operated by Monumental Sports & Entertainment, Capital One Arena is the home of the Washington Capitals of the National Hockey League (NHL), the Washington Wizards of the National Basketball Association (NBA), and the Georgetown University men’s basketball team. The arena has a capacity of over 20,000 seats and features a range of luxury suites, club seats, and general admission options. It also boasts a variety of dining options and concessions, ensuring that visitors can enjoy a range of delicious food and drinks while watching their favorite teams in action. Where is Capital One Arena? Capital One Arena is located in Washington, D.C. specifically in the Chinatown section of the larger Penn Quar...