Guide guides.

Start here if you are new to trimless lighting or need a clear explanation to share with a client. These foundation guides explain what trimless lighting is, how it works, the main options and the terms you will see on data sheets, without assuming specialist lighting knowledge. Each links on to deeper specification and detailing guides when you are ready to go further.

What these guides cover

• Plain-English explanations of the key terms
• The main product types and when each is used
• Where to go next for specification and detailing

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All guide guides

• What is trimless lighting? — Trimless lighting is recessed and plastered into the ceiling or wall so there is no visible frame, leaving only a clean line or disc of light.
• Trimless downlights: a guide for designers — Trimless downlights are plastered in so only the aperture or disc of light is visible, ideal for minimal ceilings, from small apertures to large discs like Segura.
• Trimless vs trimmed lighting: pros and cons — Trimless lighting offers the cleanest finish but needs early coordination, while trimmed lighting is faster and more forgiving; choose by design priority and programme.