1. Different Logos/Brands selectable. 2. Projector to be stuck on door and magnet on doorsill (sensor close to magnet, within 2CM). 3. Press push button to turn on light. 4. If door is closed, light turns off automatically; if opened; turns on. 5. Press push button to turn off light compulsorily. 6. Customized projections are available(extra cost needed). 7. Package: each in simple poly bag. If you need color box, shipping cost will be more expensive, please contact us before making payment.