SkyLume PX — Wall-Mounted Window Skylight

A window where there is none.

The SkyLume PX is a wall-mounted artificial window that projects the depth and color of an open sky into windowless rooms. Four precision-tuned sky panels arranged in a 2x2 grid create a convincing window aperture, complete with the soft blue gradient and luminous depth produced by Rayleigh scattering optics.

The Concept

Not every room has the luxury of a window. Basement apartments, interior offices, underground commercial spaces, and medical treatment rooms often lack any visual connection to the outside world. Research consistently links windowless environments to reduced wellbeing, lower productivity, and disrupted circadian rhythms. The SkyLume PX addresses this directly — it creates the visual and photobiological experience of a real window on any interior wall.

The PX consists of four individual sky panels, each measuring 527 x 227mm, arranged within a single integrated frame to form a 2x2 window grid. The overall assembled unit measures 1332 x 781 x 66mm — roughly the proportions of a standard residential window. The frame is finished in matte aluminum with clean mullion lines that reinforce the architectural illusion. When illuminated, the four panels produce a seamless sky field with a combined output exceeding 10,000 lumens at 160 watts.

What sets the PX apart from decorative light boxes is its biological rhythm mode. The onboard circadian controller automatically adjusts color temperature and intensity throughout the day — warm golden tones in the morning, bright neutral daylight at midday, and gradually dimming amber in the evening. This programmed cycle supports the body's natural melatonin and cortisol patterns, making the PX a genuine tool for human-centric lighting design, not just an aesthetic feature.

Key Features

• Rayleigh Scattering Window — Four-panel optical array reproduces atmospheric sky depth on a vertical wall surface. The effect is visible from wide angles, maintaining the illusion as you move through the room.
• 10,000+ Lumens Output — Bright enough to serve as primary ambient lighting for rooms up to 25 square meters. The high output creates the convincing impression of actual daylight entering through the window.
• Biological Rhythm Mode — Automated circadian program shifts color temperature from 2700K morning warmth through 6500K midday peak and back to 2200K evening wind-down. Supports natural sleep-wake cycles in windowless environments.
• CRI 95 Ra — Exceptional color rendering ensures skin tones, artwork, and interior finishes appear natural and vivid under the PX's light, matching the rendering quality of north-facing daylight.
• Architectural Frame Design — Matte aluminum frame with integrated mullion bars creates a realistic multi-pane window appearance. The 66mm profile sits close to the wall without appearing bulky.
• 160W Efficient Driver — High-efficiency constant-current driver with power factor correction. Full-range dimming from 100% to 1% without flicker or color shift.
• Wall-Mount Installation — Mounts directly to any solid wall using included heavy-duty brackets. No electrical box required — hardwire or plug-in connection options included.
• Smart Control: BLE 5.0 / DALI / 0-10V — Bluetooth app for residential users, DALI-2 for commercial building integration, 0-10V for legacy dimming systems.

Ideal Spaces

The PX was designed for any interior wall that would benefit from the presence of a window. Basement living rooms and bedrooms gain a psychological anchor to the outdoors. Therapist offices and medical examination rooms become less clinical and more calming. Corporate interior offices offer employees a sense of openness. Hotel rooms without exterior views gain a premium amenity. Underground retail and hospitality venues create inviting, daylit atmospheres that encourage longer visits.

Technical Specifications

What's in the Box

• SkyLume PX22 assembled window unit (4 sky panels pre-installed in frame)
• Heavy-duty wall-mount bracket set
• LED driver unit (160W)
• Power cable with hardwire junction box adapter
• Wall anchors and mounting hardware
• BLE pairing guide and app download card
• Installation manual with wiring diagrams

Installation

1. Position and mark. Hold the mounting bracket template against the wall at the desired height. Mark anchor points using a level to ensure the unit will hang plumb. Recommended center height is 1400mm from floor — typical window sill height.
2. Secure brackets. Drill anchor points and fix the heavy-duty wall brackets using the supplied hardware. For drywall, use the included toggle bolts rated for the unit's 30 kg weight. For masonry, use expansion anchors.
3. Hang the unit. With a second person assisting, lift the PX22 unit and hook it onto the wall brackets. The bracket design allows fine vertical adjustment after hanging. Verify level and lock the position.
4. Connect power and commission. Route the driver cable to the nearest power source. The driver can be mounted behind the unit, above a ceiling, or in an adjacent closet. Power on, pair via the Extoril BLE app, and activate biological rhythm mode.

Frequently Asked Questions