Royal Sphere — Custom Crystal Globe Chandelier for Hotel Atrium

What is the Royal Sphere and where is it specified?

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we specialise in transforming architectural visions into breathtaking luminous realities. The Royal Sphere is the epitome of this philosophy—a fully-spherical, custom-fabricated crystal globe chandelier engineered specifically for the grandest of spaces. It is most frequently specified for double-height hotel atriums, luxury resort lobbies, ballroom entrances, and exclusive retail flagships where a commanding central feature is required to define the visitor experience. The core structure is a mirror-polished stainless steel skeleton, precision laser-cut and meticulously assembled to form a perfect globe. This frame is then adorned with hundreds or thousands of K9 prism crystals, each selected for its exceptional clarity and light-refracting properties. The result is a monumental luminaire that is both a powerful light source and a captivating work of art. The design process is entirely collaborative; our team works directly with architects, interior designers, and lighting specifiers from concept sketch through to on-site installation guidance, ensuring every Royal Sphere is a unique masterpiece tailored to its environment.

Photometric and electrical specification

The Royal Sphere is engineered to meet the stringent performance and compliance standards of commercial projects in the EU, US, and Middle East. Each unit is custom-built, allowing for full specification of optical and electrical components to match project requirements. The following table provides typical specifications for a Ø2000mm configuration.

Parameter	Specification	Standard	Notes
Colour Temperature (CCT)	2200K / 2700K / 3000K	ANSI C78.377	Tunable white options available on request. Warm CCTs create a welcoming, luxurious ambiance.
Colour Rendering Index (CRI)	>95 Ra	CIE 13.3-1995	Ensures faithful colour rendering of interior finishes, artwork, and skin tones.
TM-30-18 Fidelity/Gamut (Rf/Rg)	Rf >92, Rg ~101	IES TM-30-18	High fidelity and gamut scores indicate rich, saturated, and natural colour appearance.
Luminous Efficacy	85-100 lm/W	Project Dependent	Varies based on selected CCT, dimming driver, and LED engine (COB, G9, E14).
Light Distribution	Diffuse Spherical, Multi-Point Sparkle	N/A	UGR is not applicable for decorative luminaires. Designed for ambient illumination and aesthetic impact.
Dimming Control	TRIAC / 0-10V / DALI-2 / DMX	IEC 62386	Compatible with leading building automation systems (Lutron, Crestron, etc.).
LED Driver	Tridonic / Mean Well / Osram	EN 61347	Premium, flicker-free drivers specified for reliability and long lifespan. 5-year warranty.
LED Chip	Bridgelux / Samsung / Osram	LM-80	High-flux COB or discrete LEDs with a rated L70 lifespan of >50,000 hours.
Housing Construction	K9 Crystals, Mirror-Polished 304 Stainless Steel	N/A	Frame finishes can be customised to PVD gold, bronze, matte black, or other RAL colours.
Ingress Protection	IP20	EN 60529	Suitable for indoor, dry locations typical of hotel lobbies and atriums.
Certifications	CE, RoHS, ErP, ISO9001:2015	EU/Global	UL/ETL certification is available and managed on a project-specific basis for North American markets.

Which spaces is it designed for?

The Royal Sphere is not merely a light fixture; it is an architectural element. Its scale and beauty are intended for spaces designed to inspire awe and create lasting impressions. Our engineering and design support, including the provision of IES and LDT photometric files for DIALux simulation, ensures it integrates perfectly into the most ambitious designs.

How can the Royal Sphere anchor the design of a luxury hotel lobby?

In a luxury hotel lobby, the Royal Sphere serves as the gravitational centre of the design. Suspended in a multi-story atrium, its immense scale draws the eye upwards, accentuating the height and volume of the space. The warm, soft light, typically specified at 2700K or 3000K with a CRI over 95, creates an incredibly welcoming and high-end atmosphere. During the day, it captures and refracts ambient sunlight; at night, it transforms into a dazzling galaxy of light, providing functional illumination of around 150-200 lux on the floor below while casting intricate patterns and sparkles across surrounding surfaces.

What is the process for specifying this chandelier for a multi-story atrium?

Specifying a luminaire of this scale requires a detailed, collaborative process. It begins with the architectural plans. Our team reviews ceiling heights, structural load-bearing capacities, and desired viewing angles. We then propose a scale, typically between Ø1500mm and Ø3000mm, though larger dimensions are possible. We provide detailed 3D renderings and structural drawings indicating weight (e.g., a Ø2000mm version can weigh 300-500 kg) and required suspension points. We work with the project's structural engineer to ensure all mounting hardware and ceiling reinforcements are adequately specified long before fabrication begins. This meticulous planning guarantees a safe and visually stunning installation.

Can the light quality enhance finishes and materials in a high-end space?

Absolutely. This is where a CRI of >95 Ra becomes critical. In a space featuring rich materials like marble, polished wood, velvet upholstery, or curated artwork, poor quality light can make them appear dull and lifeless. The Royal Sphere's high-fidelity light source renders colours with near-perfect accuracy. The deep reds of a Persian rug, the subtle veining in a Calacatta marble floor, and the rich tones of a walnut reception desk are all presented exactly as the interior designer intended. This high-quality illumination elevates the perceived value of every finish and furnishing in the room.

Installation, control and compliance (DALI-2 / Casambi / 0-10V, CE / RoHS / ErP)

Integration with modern lighting control systems is standard. The Royal Sphere can be equipped with drivers for any major protocol, including 0-10V analogue dimming, DALI-2 for addressable digital control, and DMX for dynamic effects. This allows it to be seamlessly incorporated into a building's management system, enabling scheduled scenes, daylight harvesting integration, and energy savings. Wireless control via Casambi (Bluetooth Mesh) is also an option for projects requiring flexible control without new wiring. For compliance, every unit is manufactured to meet CE, RoHS, and ErP directives for the European market. For projects in the United States and Canada, we manage the process for UL or ETL listing, ensuring full compliance with local electrical codes.

Customisation, MOQ and lead time

As a bespoke luminaire, every Royal Sphere is made to order. The Minimum Order Quantity (MOQ) is one set. The customisation process is comprehensive:

1. Concept & Scale: We work with your design intent and architectural constraints to define the diameter, overall height, and suspension method.
2. Material & Finish: While mirror-polished stainless steel is standard, the frame can be finished in PVD-coated gold, champagne, bronze, or powder-coated in any RAL colour. Crystal options beyond K9 can also be explored.
3. Lighting Engine: We can specify the LED source to be integrated COB modules, or discreet G9/E14-style lamps for a different aesthetic or easier on-site replacement.
4. Approval: We provide a full submittal package, including 3D renderings and shop drawings, for client approval before production commences.

The lead time for a fully custom Royal Sphere is typically between 45 and 90 days, depending on the complexity of the design and material selections. This timeline accounts for detailed engineering, material procurement, precision fabrication, assembly, and rigorous testing.

Frequently Asked Questions

Q: What is the approximate weight of the Royal Sphere and what structural support is needed?

A: The weight is dependent on the final size and material specifications. As a reference, a Ø2000mm Royal Sphere typically weighs between 300 kg and 500 kg. We provide detailed structural drawings with precise weight and mounting point locations, which must be reviewed and approved by the project's certified structural engineer to ensure the ceiling can support the load.

Q: How smoothly can the chandelier be dimmed with DALI controls?

A: When specified with a premium DALI-2 driver from a brand like Tridonic, the Royal Sphere offers exceptionally smooth, flicker-free dimming from 100% down to 1%. This logarithmic dimming curve is ideal for creating subtle transitions in ambiance for different times of the day, ensuring a high-quality user experience without any noticeable steps or flashes in output.

Q: What is the required maintenance and cleaning procedure for the crystals?

A: Maintenance is minimal. The LED light sources have a rated lifespan of over 50,000 hours, meaning lamp replacement will be infrequent. For cleaning, we recommend a gentle dusting with a soft, long-handled duster every 3-6 months. For a deeper clean, a specialized crystal chandelier cleaning spray can be used with a lint-free cloth. Always ensure the power is disconnected before cleaning.

Q: How long does the initial design and approval phase take before the 45-90 day production clock starts?

A: The collaborative design phase is highly efficient. From initial consultation to the delivery of concept sketches and 3D renderings for review, the process typically takes 5-7 business days. Following your feedback, final shop drawings are usually ready for approval within another 3-5 business days. The production lead time begins once we have signed approval on all drawings and specifications.

Request IES files and a quotation

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, our team is ready to support your next landmark project. To properly evaluate the Royal Sphere for your design, we encourage you to request project-specific IES and LDT photometric files for use in your DIALux or other lighting simulation software. Contact our engineering team with your project requirements, including desired dimensions, CCT, and control protocol, to receive a detailed, no-obligation quotation and begin the design conversation today.