A gobo projector, also known as a logo projector or image projector, is a lighting device that projects a customized image or pattern onto a surface. In the context of outdoor advertising, gobo projectors are often used to display logos, brand names, slogans, or other marketing messages on building facades, outdoor walls, or other surfaces visible to passersby.

Here's how a typical outdoor advertising gobo projector works:

1. **Light Source:** Gobo projectors utilize a powerful light source, such as LED or metal halide lamps, to generate a concentrated beam of light. This light serves as the foundation for projecting the desired image.

2. **Gobo Design:** A gobo is a thin, heat-resistant stencil made of metal or glass that contains the design or pattern to be projected. The design can be anything from a company logo to intricate patterns or textures.

3. **Gobo Holder:** The gobo is inserted into a holder within the projector. The holder positions the gobo in front of the light source, allowing the light to shine through the transparent areas of the design while blocking it from the opaque areas.

4. **Lens System:** Gobo projectors are equipped with lenses that focus and shape the light beam. These lenses can be adjusted to control the size, clarity, and direction of the projected image.

5. **Mounting and Positioning:** Outdoor gobo projectors are designed for versatile mounting options to suit different installation scenarios. They may be mounted on walls, poles, or other structures, and their positioning can be adjusted to achieve the desired projection angle and coverage area.

6. **Weatherproofing:** Since outdoor gobo projectors are exposed to the elements, they are built with weatherproof housings to protect the internal components from rain, snow, dust, and other environmental factors. This ensures reliable operation and longevity in outdoor settings.

7. **Power Supply:** Gobo projectors require a power source, typically provided through electrical outlets or, in some cases, batteries for temporary installations or locations without easy access to electricity.

8. **Remote Control and Programming:** Some gobo projectors come with remote control capabilities or programmable features, allowing users to adjust settings, switch between different images, or schedule projection times remotely.

Overall, outdoor advertising gobo projectors offer a dynamic and eye-catching way to showcase branding and promotional content in outdoor environments, effectively attracting attention and engaging audiences, especially during evening hours or low-light conditions.