If you have searched for car door lights, you have probably seen the terms puddle lights, courtesy lights and logo projectors used together. They overlap, but they do not always describe the same effect. Understanding the difference makes it easier to choose an upgrade that delivers the look you want.
The key point: A conventional puddle light illuminates an area near the car. A door logo projector uses optics to cast a recognisable design onto the ground. Both need a suitable fitting and electrical supply.
| What changes? | Standard puddle light | HD LED door projector |
|---|---|---|
| Output | General pool of light | Projected logo or design |
| Main visual purpose | Illuminates the ground | Adds an illuminated design |
| Best viewing conditions | Depends on lamp output and surroundings | Design usually stands out more in lower ambient light |
| Fitment | Specific to its lamp location | Housing and connector must match the intended replacement |
What is a puddle light?
Puddle lights illuminate the ground around a vehicle entry point. Depending on the vehicle, the lamp may be in the door or wing mirror. The term describes the lighting function rather than guaranteeing a specific type of housing.
A replacement door-mounted projector is not automatically suitable for a mirror-mounted lamp. Check the physical location before comparing products.
What makes a logo projector different?
A projector directs light through an optical assembly to form an image on a surface. Instead of a plain patch of light, you see the selected logo or artwork when the door is open.
The word HD describes the product’s intended image clarity; it does not make the ground a display screen. Texture, colour, surrounding light and projection distance still affect what you see.
What is inside the Auto Haus Carbon range?
Our standard BMW HD projector listings specify quartz glass lenses and an Osram LED bead, with a plastic housing and alloy heatsink. Other vehicle listings describe their own construction and fitment, so check the particular product you choose.
These construction details are useful when comparing products. They should be considered alongside connector compatibility, housing size and the design options rather than treating every logo light as an identical product.
Which option suits your car?
Choose a conventional replacement if your priority is retaining a plain light effect. Choose a compatible HD logo projector if you want the design to become part of your car’s styling.
Think about what you want to see each evening, not just a bright product photograph. A design that matches your model or existing badges can make the entry detail feel coordinated.
What should you check before upgrading?
Confirm that there is an existing powered lamp, compare its dimensions and connector, and read the application notes. If there is only a reflector, establish the retrofit requirements first.
A pair of projectors is not necessarily a complete lighting conversion. Check the package contents and contact us if wiring or vehicle configuration is uncertain.
Explore the product: BMW HD LED Door Projectors M Performance 50th Anniversay etc - ALL MODELS.
BMW size help: BMW door projector size guide: 50mm or 70mm?
Frequently asked questions
Are puddle lights and logo lights the same thing?
A logo light may serve as a puddle light, but many puddle lights produce plain illumination without projecting a design.
Will a logo be equally clear in daylight?
Bright surroundings can reduce the apparent contrast. Judge the projection in comparable lighting conditions.
Does LED automatically mean logo projection?
No. LED describes the light source, not whether a lamp contains projection optics.
Choose your HD door projector upgrade
Check the fitting, choose your design and enjoy a detail that suits your car. We’re on hand with technical advice and fitting guidance.
Unsure about compatibility? Contact Auto Haus Carbon before ordering.
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