D85 series Suspended Version LED Downlight 15-20w

What is the D85 Rube Series Suspended Downlight and where is it specified?

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we present the D85 Rube Series Suspended Version LED Downlight. This architectural luminaire is engineered for designers, architects, and contractors in the EU, US, and Middle East who require a sophisticated and versatile pendant lighting solution. With a sleek cylindrical profile (D85*H130mm) crafted from high-grade ADC12 die-cast aluminium, the D85 offers both focused accent lighting and comfortable general illumination. Available in 15W and 20W versions, it integrates premium LED chips and drivers to deliver exceptional performance and reliability. Its minimalist design, available in matt white or matt black finishes with customisable reflector colours, allows it to complement a wide range of commercial interiors, from high-end retail boutiques and hotel lobbies to contemporary office spaces and art galleries. This fixture is the specifier's choice for projects demanding precise optical control, superior colour quality, and seamless integration with modern building management systems.

Photometric and electrical specification

The D85 Rube Series is built to meet demanding European and US project specifications. All configurations are supported by complete IES and LDT photometric files for easy integration into DIALux lighting design software.

Parameter	Specification	Standard	Notes
Optical System	Interchangeable reflector (White, Black, Gold, Silver) + Lens	-	Anti-glare design with deep-set light source.
Correlated Color Temperature (CCT)	2700K, 3000K, 4000K, 5000K, Tunable White, Dim-to-Warm	ANSI C78.377	MacAdam SDCM <3 for consistent colour across all fixtures.
Color Rendering Index (CRI)	>80, >90, >97	CIE 13.3-1995	High CRI options (90+ and 97+) are ideal for retail and museum applications.
Colour Fidelity / Gamut (TM-30)	Rf >90, Rg >98 (on CRI90+ models)	IES TM-30-18	Provides a more complete measure of colour rendition for critical applications.
Unified Glare Rating (UGR)	UGR < 19 with specific optics	EN 12464-1	Achievable with deep-set reflector and lens combination for office/task environments.
Beam Angles	15°, 24°, 38°, 60°	-	Versatile options for accent (15°/24°) and ambient (38°/60°) lighting.
Luminous Efficacy	100-110 lm/W (lamp)	-	Varies by CCT, CRI, and driver selection.
Power Consumption	15W (350mA) / 20W (500mA)	-	Power Factor > 0.9 across all models.
Driver Brands	Tridonic, Osram, Mean Well, Philips, HEP, TCI, BOKE, Lifud	-	Non-dimmable, TRIAC, 0-10V, DALI-2, and wireless options available.
LED Chip Brands	Bridgelux, Citizen, CREE, Samsung, Osram, Philips, Luminus	-	Guarantees performance and long lifetime (L80B10 > 50,000 hours).
Housing Construction	ADC12 Die-cast Aluminium Body & Heatsink	IP20	Suitable for indoor, dry locations. Excellent thermal management.
Housing Finish	Powder coated Matt White (RAL9016), Matt Black (RAL9005)	-	Custom RAL colours available upon request for large projects.
Certifications	CE, RoHS, ErP	ISO9001:2015	Fully compliant for the EU market. Undergoes rigorous quality control.

Which spaces is it designed for?

The D85 suspended downlight is a highly adaptable fixture designed to elevate the visual experience in a variety of commercial settings. Its performance-driven features allow it to be specified with confidence across Europe and North America.

How can this fixture enhance retail and hospitality environments?

In retail stores, restaurants, and hotel lobbies, the quality of light directly impacts customer perception and sales. The D85 excels here by offering very high colour rendering (CRI 97+) and excellent TM-30 metrics, ensuring that merchandise, food, and interior finishes are displayed in their truest, most vibrant colours. Specifiers can use the narrow 15° and 24° beam angles to create dramatic accent lighting on displays or tables, drawing customer attention. For a warmer, more luxurious ambiance, the gold reflector option or Dim-to-Warm (e.g., 3000K to 1800K) functionality creates an inviting atmosphere that encourages guests to linger.

What are the benefits for modern office and co-working spaces?

For contemporary workplaces, the D85 addresses the critical need for visual comfort and flexibility. By selecting the appropriate reflector and lens combination, the fixture can achieve a UGR < 19, meeting the stringent EN 12464-1 standard for office lighting and reducing screen glare and eye strain. A standard 4000K CCT provides a bright, energising environment. When integrated with a DALI-2 control system, the D85 supports human-centric lighting schemes, daylight harvesting, and presence detection, contributing to significant energy savings (up to 60-70%) and a healthier, more productive workspace.

Can it be used for accent lighting in galleries or museums?

Yes, the D85 is an excellent choice for galleries, museums, and showrooms where colour accuracy and conservation are paramount. The CRI 97+ LED chips render artwork and exhibits with museum-quality precision. The interchangeable optics allow curators and designers to shape light precisely, with the 15° beam perfect for highlighting small sculptures or specific details in a painting from a distance. The availability of multiple control protocols, including 0-10V and DALI, allows for nuanced dimming down to 1% to meet conservation lux level requirements while creating the desired dramatic effect.

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

The D85 series is engineered for straightforward installation and sophisticated control. It is supplied with a standard 1.5-meter suspension cable that can be adjusted on-site. The remote driver is housed in a separate enclosure for clean ceiling aesthetics and easy maintenance. We offer comprehensive compatibility with leading control systems used in the EU and US markets. This includes wired protocols like DALI-2 for interoperable, addressable control, and 0/1-10V for simple dimming. For projects requiring retrofitting or enhanced flexibility, we support wireless controls via Casambi (BLE Mesh) and ZigBee modules. All versions are fully compliant with CE, RoHS, and ErP directives, ensuring they meet all safety and performance standards for market access. Our manufacturing facility operates under the ISO9001:2015 quality management system.

Customisation, MOQ and lead time

As a direct manufacturer, we provide extensive customisation to meet project-specific needs. Beyond the standard Matt White and Matt Black housing finishes, we can supply the D85 in any RAL colour for a minimum order quantity (MOQ) of 200 units. The internal reflector can be specified in white, black, specular silver, or a warm gold finish to modify the light's character. Our standard MOQ for this series is 100 units. The typical production lead time for orders up to 1,000 units is approximately 20-25 business days, with a dedicated project manager overseeing your order from specification to dispatch. We work closely with international freight forwarders to ensure timely delivery to your project site.

Frequently Asked Questions

Q: What colour rendering and temperature options are available?

A: The D85 series offers a wide CCT range from a warm 2700K to a cool 5000K, with options for Tunable White and Dim-to-Warm. For colour-critical applications like retail and galleries, we provide high-fidelity options with a Colour Rendering Index (CRI) exceeding 97 and TM-30 Rf values over 90. This ensures accurate and vibrant representation of colours, backed by a MacAdam Ellipse of SDCM <3 for consistency.

Q: Is this fixture compatible with smart lighting control systems?

A: Yes, the D85 is designed for full compatibility with modern control systems. We offer drivers for wired protocols including DALI-2 and 0-10V dimming. For wireless control, we can integrate modules for Casambi (Bluetooth Low Energy) and ZigBee, allowing for flexible app-based control, scene-setting, and integration into larger building automation systems. Our drivers from brands like Tridonic and Osram guarantee reliable performance with these systems.

Q: What is the typical lead time for a 500-unit project order to Europe?

A: For a mid-sized project order of 500 units, our standard production lead time is 20-25 business days from the confirmation of all technical specifications and deposit. Air freight to major European hubs typically takes an additional 5-7 days, while sea freight can take 30-40 days. We provide a detailed production and shipping schedule upon order confirmation to facilitate your project planning.

Q: Can I get photometric files for my lighting simulation software?

A: Absolutely. We provide comprehensive photometric data for the D85 series to support your design process. Upon request, we will supply IES (for North American software) and LDT (for European DIALux) files for all available beam angle and wattage combinations. These files accurately model the fixture's output, which can reach up to 110 lm/W, enabling precise calculations for lux levels, uniformity, and UGR in your DIALux or RELUX simulations.

Request IES files and a quotation

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we are ready to support your next project with the D85 Rube Series Suspended Downlight. Our engineering team can provide full photometric files, technical data sheets, and installation guides. Contact us today to discuss your project requirements, request a sample, or receive a detailed quotation tailored to your specifications and delivery location in Europe, the United States, or the Middle East.