Sunday Window

A window where there isn't one.

The Sunday Window is a wall-mounted daylight panel that recreates the depth, warmth and sky of a real window. Tunable from soft dawn to bright midday, app-controlled, silent, engineered — not decorative. Think 8 Sleep, but for light.

The light that changes everything

Most rooms don't have enough light. The Sunday Window fixes that.

Behind a seamless aluminium frame sits a full optical system — a multi-layer diffuser stack, a Rayleigh sky layer and a first-surface mirror. A precision optical and mirror design produces a true sun-in-sky effect, with real depth and parallax, not a flat glow. The result isn't a glowing panel. It's a window, with sky in it.

Dual warm and cool channels shift it through the day: soft amber at dawn, crisp blue-white at noon, wind-down warmth in the evening. Set it from your phone, or let it follow your circadian rhythm automatically.

Silent. No fans. A passive thermal design built around aluminium heat-spreaders and heat pipes, so it runs quiet.

Built to sit flush and disappear into a white wall. Invisible complexity — all the engineering hidden behind a minimal, architectural form.

Key features

• Real sun in a real sky — a precision optical and mirror system creates convincing depth, parallax and a genuine sun-in-sky effect, not a flat glow.
• Genuinely bright — 10,000 lux at 10 cm. A daylight source, not a mood light.
• Dawn to midday, tunable — 2700K–6500K warm-to-cool across a full day cycle.
• App control + circadian scenes — set it, or let it follow the day automatically.
• Silent by design — passive cooling, nothing to hear.
• Architectural finish — anodised-look aluminium, sits flush to the wall.
• Clean install — ultra-slim wall bracket, single low-profile power feed.

Technical specifications

• Panel size: 61 × 90 cm
• Depth from wall: 150 mm
• Weight: 20 kg
• Power draw: ~320 W
• Light source: 162-LED array, dual channel (warm + cool tunable white)
• Colour temperature: 2700K – 6500K
• Brightness: 10,000 lux at 10 cm
• Optical system: Precision optical + mirror design — true sun-in-sky effect
• Control: Sunday app (iOS / Android) + RF panel; scenes & circadian scheduling
• Connectivity: Wi-Fi 2.4GHz + Bluetooth setup
• Frame / finish: Anodised-look powder-coated aluminium extrusion
• Cooling: Passive — aluminium heat-spreaders + heat pipes (silent)
• Mounting: Ultra-slim wall bracket, grounded stainless-steel mounts
• Warranty: 2 years

What's in the box

• Sunday Window panel
• External Meanwell 48V PSU + braided DC cable
• Ultra-slim wall bracket + fixings
• Quick-start / install card
• Grounding hardware (pre-fitted)

Frequently asked questions

Does it need a real window behind it?
No — it mounts on any wall.

Is it bright enough to light a room?
Yes — 10,000 lux at 10 cm. It's a high-output daylight source, not a mood light.

Can I change the colour and brightness?
Yes — fully tunable warm-to-cool (2700K–6500K), dimmable, and app-controlled.

Is it noisy?
No — passive cooling, completely silent. No fans.

Does it get warm?
The frame runs warm in use, like any high-output light, and mounts above normal touch height. It's thermally engineered to stay within safe operating limits.

How is it installed?
Wall bracket plus a single power feed; professional install recommended.

What's the warranty?
2 years.