When it comes to faucet materials, copper is currently the top choice for manufacturing. Most faucets available in the market, especially in Europe and America, are made from brass—a combination of copper and zinc. A small amount of lead is often added during the production process to improve the cutting performance of the material. Without lead, the brass could become difficult to shape and might crack due to stress corrosion, even after being manufactured.
Copper-based faucets have long been associated with lead, yet they remain the standard in developed countries. The reason lies in copper’s natural antibacterial properties. Historical records show that ancient Egyptians used copper for wound disinfection, treating eye infections, and purifying drinking water as early as 2500 BC. Modern research supports this—authorities like the U.S. Environmental Protection Agency (EPA) confirm that copper can kill over 99.9% of bacteria within an hour, making it one of the most effective antimicrobial surfaces available. No other material, such as silver-coated or stainless steel, can match this level of effectiveness.
Vertical axis: Bacterial count | Horizontal axis: Time
Copper is particularly effective against dangerous superbugs like MRSA, and bacteria cannot develop resistance to it. Unlike other materials such as stainless steel or plastic, copper faucet interiors do not support bacterial growth. With the development of low-lead copper (with less than 0.25% lead), the antibacterial benefits have improved further. This suggests that copper will continue to be the best choice for faucet manufacturing in the future.
Causes and Risks of Lead in Brass Faucets
In China, the main material used for faucet production is HPb59 brass, which contains less than 1.9% lead. However, some manufacturers may use higher lead content—up to 3%–6%—to cut costs and improve machinability. During the casting process, which occurs at around 1053°C, lead, with a melting point of 327.5°C, tends to separate on the surface, resulting in lead concentrations up to 3–5 times higher on the outer layer. Although a lead removal process can be applied, water flowing through the faucet can erode this layer, causing corrosion and exposing internal lead ions, which increases lead leaching into the water.
To address this issue, the U.S. introduced low-lead copper to reduce the risk of lead contamination. Lead is one of the most harmful heavy metals, especially for children. Their bodies absorb lead more easily—up to five times more than adults—and they are far more sensitive to its effects. Even small amounts of lead in blood, such as 50–60 micrograms per 100 ml, can cause poisoning in children, while adults may tolerate up to 80–100 micrograms. Studies show that children with high lead levels tend to have lower IQ scores, affecting their cognitive and language abilities significantly.
Lead Limits and Testing Standards in China and Abroad
The lead content in faucets is measured in two ways: either as the percentage of lead in the raw material or as the amount of lead leached into water, often expressed in micrograms per liter or by the Q value. It's important to note that meeting raw material standards doesn't guarantee compliance with leaching standards. Consumers should be aware of this distinction when choosing a product.
The NSF61 standard in the U.S. is widely recognized, and the Chinese standard JC/T1043-2007 aligns closely with it. According to JC/T1043, at least three samples of the same model must be tested. Water is changed every two hours over several days, and samples are taken on specific days for testing. The standard requires the lead leaching value to be below 11 µg, while the updated GB18145 standard in 2014 sets a stricter limit of 5 µg. These values depend on the product size and stability, so proper testing is crucial. In China, reputable testing institutions include the National Plumbing Hardware Testing Center and the Guangzhou CQC Laboratory under the China Quality Certification Center.
Stylish & Durable Double Head Outdoor Wall Light Fixtures
Double head wall lights, also known as up and down wall lights or twin beam wall fixtures, provide a clean, modern lighting solution that enhances both indoor and outdoor spaces. With beams projecting in two opposing directions—typically upward and downward—these fixtures are ideal for creating architectural highlights, increasing visibility, and adding a sophisticated ambiance to residential, commercial, and hospitality environments.
At our LED lighting factory, we specialize in manufacturing LED double head wall lights that combine sleek design with durable performance. Whether mounted in an entrance corridor, garden wall, office building façade, or living room, our double beam fixtures provide an elegant way to light up both vertical space and the immediate surrounding area.
Key Features of Double Head Wall Lights
✅ 1. Dual Beam Lighting Effect
One of the standout benefits of double head wall lights is their ability to cast light both upward and downward, creating stunning wall wash effects. This directional contrast enhances texture, adds depth, and draws attention to architectural surfaces.
✅ 2. LED-Powered Energy Efficiency
All our fixtures are equipped with high-performance LED chips, offering significant energy savings (up to 80% less than halogen), consistent brightness, and a long service life exceeding 30,000–50,000 hours.
✅ 3. Modern, Geometric Designs
These wall-mounted lights are available in rectangular, square, round, or cylindrical bodies, offering clean lines that complement modern and minimalist styles. Custom colors and finishes (black, white, grey, bronze, etc.) are available to suit your project.
✅ 4. Indoor & Outdoor Compatibility
With IP65 or IP67 waterproof ratings, our double head LED wall lights are ideal for outdoor use—resistant to dust, rain, and temperature fluctuations. Indoor variants include anti-glare diffusers for living spaces, hotel corridors, or office walls.
✅ 5. Customizable for Every Project
We offer a wide range of wattages, beam angles, control types (on/off, dimmable, smart control), and mounting methods. OEM/ODM support is available for private labeling and large-volume custom projects.
Application Scenarios
Double head wall lights can be used in nearly any setting where vertical lighting or architectural emphasis is needed:
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Building Exteriors: Highlight textures, entryways, and facades with twin beam LED wall lights.
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Garden & Patio Walls: Create dramatic visual effects and improve nighttime navigation.
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Hotel & Office Hallways: Provide soft, glare-free ambient lighting while maintaining design consistency.
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Living Rooms & Stairwells: Add architectural interest to interior walls or corners.
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Commercial Entrances: Use as security-enhancing, style-forward lighting near doorways or shopfronts.
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Jiangmen Synno Lighting Co., Ltd. , https://www.synnoled.com