Bulk Wall Wash-D85 LED Downlight Square 10-12W

What is the Bulk Wall Wash-D85 LED Downlight Square and where is it specified?

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we engineered the Bulk Wall Wash-D85 Square LED Downlight as a precision instrument for architectural lighting designers and specifiers. This 10-12W luminaire is not a general-purpose downlight; it is a specialist tool designed with advanced asymmetrical optics to cast a smooth, uniform sheet of light across vertical surfaces. Its primary function is to eliminate scalloping and hotspots, creating a seamless gradient that enhances textures, artworks, and architectural features. It's the ideal solution for projects in the EU, US, and Middle East where vertical illuminance is critical to the lighting scheme's success. Complete IES and LDT photometric files are available for precise planning in DIALux and other lighting design software.

Photometric and electrical specification

The Bulk Wall Wash-D85 series is built to specification, allowing for precise tailoring to project requirements. Key performance metrics are detailed below.

Parameter	Specification	Standard	Notes
Optical System	Asymmetrical Wall Wash Lens + 25° Tilt	Asymmetrical	Specifically designed to direct light sideways onto a vertical plane from a ceiling aperture.
Correlated Color Temp (CCT)	2700K, 3000K, 3500K, 4000K, 5000K, 6500K	ANSI C78.377	All CCTs are within a 3-step MacAdam ellipse (SDCM<3) for fixture-to-fixture consistency.
Color Rendering Index (CRI)	Ra >80, Ra >90, Ra >95, Ra >98	CIE 13.3-1995	High CRI options (95+) provide museum-quality light, crucial for retail and gallery applications.
TM-30-20 Fidelity/Gamut	Rf 90-97 / Rg 98-102	IES TM-30-20	Full TM-30 data available on request to evaluate spectral power distribution for specific applications.
Luminous Efficacy	80-130 lm/W	-	Varies with CCT, CRI, and power selection. Higher efficacy at 4000K/CRI80.
Rated Power	10W / 12W	-	External constant current driver ensures stable power delivery and long life.
Driver Brand	Tridonic, Mean Well, Osram, Philips, TCI, BOKE	EN 61347	Driver is selected based on required control protocol (DALI, 0-10V, TRIAC) and regional compliance.
LED Chip Brand	Bridgelux, Citizen, CREE, Samsung, Osram	LM-80	L80B10 > 50,000 hours projected lifetime.
Unified Glare Rating (UGR)	<19	EN 12464-1	The deep-recessed source and optical design contribute to low glare, essential for office and hospitality.
Housing Material	ADC12 Die-cast Aluminium	-	Provides excellent thermal management for the LED chip, ensuring performance and longevity.
IP Rating	IP20	EN 60529	Suitable for general indoor dry locations. Not intended for wet or damp areas.
Finish Options	Matt White (RAL9016), Matt Black (RAL9005)	-	Custom RAL colors available for project quantities (MOQ applies).
Certifications	CE, RoHS, ErP, ISO9001	EU/Global	Compliant for market access in Europe and meets global quality manufacturing standards.

Which spaces is it designed for?

The Bulk Wall Wash-D85 is specified in commercial, hospitality, and cultural environments where the quality of light on vertical surfaces directly impacts user experience and perception of space. Its ability to deliver high-quality, uniform light makes it a versatile tool for architects and lighting designers aiming to create visually comfortable and engaging interiors.

How does it create a uniform wall wash effect?

The effect is achieved through a combination of three key elements. First, the specialized asymmetrical lens directs the light beam sideways at a controlled angle. Second, the entire optical assembly is tilted internally by 25 degrees, further shaping the distribution. Third, correct placement is crucial. For a typical 2.8-meter ceiling, placing the downlight 0.8-1.0 meter away from the wall will produce a smooth, floor-to-ceiling wash of light. This precise optical control avoids the harsh "scalloping" effect common with standard adjustable downlights, instead creating a soft, even gradient that makes spaces feel larger and more open.

What are the best applications for high-CRI vertical illumination?

In high-end retail, using a CRI95+ version of the D85 to illuminate a feature wall of merchandise can make colors appear more vibrant and textures more appealing, directly influencing purchasing decisions. In a hotel lobby or corridor, washing a textured wall (e.g., stone or wood) creates a sense of luxury and visual interest, elevating the guest experience. For corporate offices, washing a wall behind a reception desk with the company logo on it ensures the brand is presented crisply and professionally, achieving vertical illuminance levels of 300 lux or more without creating uncomfortable glare for staff or visitors.

Can it be used in museum or gallery lighting projects?

Yes, the D85 is an excellent choice for conservation-grade lighting in museums and galleries, provided the correct specification is chosen. The CRI98+ option provides near-perfect color fidelity, ensuring artworks are seen exactly as the artist intended. Our TM-30 data allows curators to verify how specific pigments will be rendered. Furthermore, LED technology produces virtually no damaging UV or IR radiation. When paired with a DALI-2 control system, light levels can be precisely commissioned and controlled to meet strict conservation standards, such as maintaining levels below 150 lux for sensitive watercolors or textiles, while still achieving a beautiful visual effect.

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

Designed for straightforward integration by electrical contractors, the Bulk Wall Wash-D85 requires a 75mm x 75mm square ceiling cutout. The fixture is secured via two durable spring-loaded clips, and its overall depth of 94mm allows for installation in most standard ceiling voids. The external driver is connected via a simple plug-and-play connector, simplifying maintenance.

Control versatility is a core feature. We provide drivers for any modern control system:

• DALI-2: For digitally addressable, interoperable control systems common in new European commercial builds. Allows for individual fixture control, scene setting, and energy monitoring.
• 0-10V / 1-10V: The standard for dimming in many US commercial projects, providing simple and reliable analog dimming.
• TRIAC (Phase-cut): A cost-effective solution for smaller installations or retrofits using existing mains wiring.
• Wireless (Casambi, ZigBee): For projects where running new control wiring is impractical, offering full flexibility via Bluetooth Mesh or other wireless protocols.

Full compliance is guaranteed for EU projects, with CE marking (LVD/EMC), RoHS certification, and ErP-compliant efficacy. Our manufacturing process is ISO9001:2015 certified.

Customisation, MOQ and lead time

As a manufacturer, we offer deep customisation. Beyond CCT and CRI, we can provide the fixture housing in any custom RAL color to match your interior design palette. We can pre-configure drivers and source specific LED chips to meet unique performance criteria.

Our standard Minimum Order Quantity (MOQ) for the Bulk Wall Wash-D85 is 100 units. For smaller trial orders or mock-ups, please contact our sales team to discuss your project.

Standard production lead time is typically 15-25 working days from order confirmation and drawing approval. This can vary based on the level of customisation and component availability. We provide a firm delivery schedule upon quotation.

Frequently Asked Questions

Q: What is the warranty period for this downlight?

A: The Bulk Wall Wash-D85 comes with a comprehensive 5-year warranty covering the LED module and the external driver. We utilize high-reliability drivers from brands like Tridonic and Osram, ensuring a system lifetime (L80B10) of over 50,000 hours. The warranty is conditional on proper installation and operation within specified ambient temperature and electrical parameters.

Q: Can I get this fixture with very high color rendering?

A: Absolutely. While CRI90+ is our high-quality standard, we can supply the D85 with CRI95+ and CRI98+ COB modules from Citizen or Bridgelux. These options deliver an R9 value greater than 90, making them ideal for rendering deep reds accurately in museum and high-end retail environments. All our selections feature a color consistency of SDCM <3.

Q: What are the precise cutout dimensions for installation?

A: The D85 series requires a square ceiling cutout of 75mm x 75mm. The luminaire has an overall face dimension of 85mm x 85mm, providing a 5mm trim on all sides to ensure a clean finish against the ceiling material. The total fixture depth is 94mm, so please allow for at least 110mm of ceiling void for proper driver ventilation and installation.

Q: What dimming protocols are supported?

A: We offer extensive dimming support to integrate into any control system. Standard options include mains dimming (TRIAC), 0-10V/1-10V analog, and DALI-2 for digital addressable control. For smart building projects, we can equip the fixture with drivers compatible with ZigBee, Bluetooth Low Energy (BLE/Casambi), and even DMX for dynamic applications. Our engineers will help you select the correct driver for your project's specific protocol.

Request IES files and a quotation

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we are committed to supporting your project from specification to delivery. Our engineering team provides comprehensive technical support for specifiers and contractors in the EU, US, and Middle East. To fully evaluate the Bulk Wall Wash-D85, please contact us to request the complete set of IES and LDT photometric files for your DIALux or Relux lighting simulation. Our team is ready to prepare a detailed quotation based on your project's specific power, CCT, CRI, and control requirements.