Underground Light Knowledge

1. Analysis of the core technology of wall washer lamps

Wall washer lamps are lighting equipment that evenly "brightens" the wall through light, and are widely used in architectural lighting, landscape decoration and other fields. Its technical core focuses on the following aspects:

1. Optical design technology

Light distribution lens technology

Wall washer lamps control the angle and distribution of light through specially designed optical lenses (such as PC material or glass lens) to achieve the "wall washing" effect. Common light distribution angles include 15°, 30°, 45°, 60°, etc. Small-angle lenses are used for long-distance precise projection, and large-angle lenses are used for large-area uniform light distribution.

Case: Some high-end products use "asymmetric light distribution lenses" to prevent light from overflowing to non-target areas and reduce light pollution.

Anti-glare technology

Through microporous optical structure, grille shielding or deep cavity design, the light emission angle is controlled to reduce direct glare. For example, a "honeycomb anti-glare net" or "optical baffle" is used to hide the LED light source inside the deep cavity to prevent the human eye from looking directly at the strong light.

2. Heat dissipation technology

Wall washer lamps need to deal with high temperature environments for long-term outdoor work, and the heat dissipation design directly affects the life and stability:

Integrated heat dissipation structure

Adopt aviation-grade aluminum alloy die-cast lamp body, expand the heat dissipation area through fin-type heat sink, and add thermal conductive silicone or heat pipe (Heat Pipe) to improve heat conduction efficiency in some products.

Passive heat dissipation vs. active heat dissipation

Passive heat dissipation: relies on the natural heat dissipation of the metal material of the lamp body, suitable for products with power ≤50W.

Active heat dissipation: integrated micro fan or liquid cooling system, used for high-power (such as above 100W) wall washer lamps, with higher cost but better heat dissipation efficiency.

3. Waterproof and protection technology

Outdoor environment requires wall washer lamps to have high-level protection performance:

IP65/IP66 waterproof level

Adopt a fully sealed structure, use a silicone rubber sealing ring at the junction of the lamp body and the mask, and equip the outlet with a waterproof connector to ensure that rain and dust cannot invade.

Corrosion-resistant treatment

The surface is sprayed with outdoor powder paint (such as Akzo Nobel powder) or electroplated to resist erosion such as salt spray and acid rain, and extend the service life in coastal or industrial pollution areas.

4. Intelligent control technology

DMX512 protocol

Supports network control of multiple wall washers, and realizes color gradient, dynamic chasing, video synchronization and other effects through the controller. It is often used in large-scale building lighting projects.

Wireless intelligent control

Integrated Bluetooth and Wi-Fi modules, compatible with mobile phone APP or smart home systems (such as Tuya Smart, Xiaomi IoT), support remote dimming, color adjustment and scene mode switching.

Light-sensitive and temperature control sensors

Some products have built-in ambient light sensors, which can automatically adjust the power according to the brightness of day and night; the temperature control sensor automatically downgrades when the temperature is too high to protect the light source.