X5 COB Series D145 LED Downlight 15-20W Manufacturing

What is the X5 COB Series D145 LED Downlight and where is it specified?

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we engineer architectural lighting solutions for discerning specifiers in the EU, US, and Middle Eastern markets. The X5 COB Series D145 is a cornerstone of our recessed lighting portfolio, offering a perfect balance of performance, efficiency, and design flexibility. This luminaire, with product codes XH-DL-15W-X5 (15W) and XH-DL-20W-X5 (20W), is a high-output downlight designed for commercial applications requiring superior light quality and long-term reliability. With a standard 125mm cutout, it's an ideal choice for both new construction and retrofit projects in office, retail, and hospitality sectors. Its ADC12 die-cast aluminum construction ensures excellent thermal management, contributing to a rated lifetime exceeding 50,000 hours.

Photometric and electrical specification

The X5 D145 is engineered with high-quality components to meet the performance demands of architectural and commercial projects. Full technical datasheets are available upon request.

Parameter	Specification	Standard	Notes
Optical
Color Temperature (CCT)	2700K, 3000K, 3500K, 4000K, 5000K, 6500K	EN 12464-1	Tunable White & Dim-to-Warm available.
Color Rendering (CRI)	>80, >90, >95, >98 Ra	CRI (CIE 13.3)	High CRI options for retail/galleries.
Color Fidelity (TM-30)	Rf >90, Rg ≈100 (for CRI90+)	IES TM-30-18	Full TM-30 reports available on request.
Glare Rating (UGR)	<19 achievable with specified optic	EN 12464-1	Suitable for office and school applications.
Beam Angle	60° (Standard); other angles available	-	Custom optics available on project basis.
Color Consistency	<3 SDCM	MacAdam Ellipse	Guarantees uniformity across fixtures.
Electrical
System Power	15W / 20W	-	Part of a larger family from 10W to 35W.
Luminous Efficacy	100-130 lm/W	-	Dependent on CCT/CRI selection.
Driver Brand	Tridonic, Mean Well, Osram, Philips, Lifud	-	Specified per project requirements.
Dimming Control	DALI-2, 0-10V, TRIAC, Casambi (BLE), Zigbee	-	Flicker-free performance standard.
Physical & Mechanical
LED Chip Brand	Citizen, Bridgelux, CREE, Philips, Luminus	-	Ensures high performance and reliability.
Housing Material	ADC12 Die-Cast Aluminum	-	Excellent passive thermal management.
Standard Finish	Matt White (RAL9016), Matt Black (RAL9005)	-	Custom RAL finishes available (MOQ applies).
IP Rating	IP20	EN 60529	For indoor, dry locations only.
Dimensions / Cutout	Ø145 x H69mm / Ø125mm	-	See X5 Series for other sizes.
Compliance
Certifications	CE, RoHS, ErP	EU Directives	For market access in Europe.
Manufacturing	ISO9001:2015 Certified Facility	Quality Management	Ensures consistent production standards.

Which spaces is it designed for?

The X5 D145's versatility stems from its highly configurable nature. It is engineered to meet the stringent requirements of modern commercial interiors, where visual comfort, color accuracy, and energy efficiency are paramount. The following scenarios illustrate its ideal applications.

How can this downlight enhance visual comfort in a modern office?

For office environments in Europe and the US, achieving a low Unified Glare Rating (UGR) is critical for employee well-being and productivity. The X5 D145, when specified with its deep-set reflector and appropriate beam angle, can readily achieve a UGR<19, making it compliant with EN 12464-1 standards for office lighting. Combined with our selection of flicker-free drivers from brands like Tridonic and Osram, it provides stable, comfortable illumination that reduces eye strain. Specifiers can select CCTs from 3000K to 4000K to create an alert and productive atmosphere, with options for Dim-to-Warm (DTW) and Tunable White (TW) to support human-centric lighting schemes. An installation achieving 300-500 lux at the task plane is easily achievable with standard spacing.

What makes the X5 D145 a superior choice for retail and gallery lighting?

In retail, gallery, or museum settings, accurate color rendering is non-negotiable. The X5 D145 excels here, with COB LED options from Citizen and Bridgelux available up to CRI 98+. This ensures that merchandise, artwork, and finishes are displayed in their truest colors. Beyond a high CRI, we provide full TM-30-18 data, with typical values of Rf > 90 and Rg ≈ 100, indicating high fidelity and saturation without unnatural distortion. Our tight <3 Step MacAdam Ellipse (SDCM) binning guarantees exceptional color consistency from fixture to fixture, eliminating distracting color shifts across large installations. The standard 60° beam provides excellent general illumination, with other optical options available to create focused accent lighting.

Can it be seamlessly integrated into hotel and hospitality projects?

The X5 D145 is designed for seamless architectural integration. Its 145mm trim diameter and 125mm cutout are common dimensions, simplifying specification and installation in hotel lobbies, corridors, and guest rooms. The standard Matt White (RAL9016) and Matt Black (RAL9005) finishes complement most contemporary interior palettes, and custom RAL finishes are available for large projects. Crucially, its compatibility with a wide range of control systems—including DALI-2, 0-10V, and wireless options like Casambi (BLE)—allows it to integrate into sophisticated guest room management and building automation systems. For a consistent design language, the X5 family includes smaller (D110, 10W) and larger (D190/D230, 25-35W) versions for varying ceiling heights and output requirements.

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

Installation is streamlined via a standard spring-clip mechanism suitable for ceiling thicknesses from 5-25mm. The luminaire ships with a remote driver, which can be specified as a simple non-dimmable unit or with advanced control protocols. We fully support DALI-2 for granular digital control and monitoring, 0-10V analog dimming, and leading wireless solutions like Casambi and Zigbee for flexible, app-based control. All our drivers are sourced from globally recognized brands like Tridonic, Mean Well, and Osram, ensuring compatibility and reliability. The X5 D145 series is fully certified for the European market, holding CE, RoHS, and ErP compliance, and our manufacturing process is ISO9001:2015 certified, guaranteeing consistent quality.

Customisation, MOQ and lead time

As a manufacturer, we specialize in tailoring products to project requirements. For the X5 D145, customizations include specific CCTs (e.g., 3500K), alternative beam angles, and custom RAL powder coat finishes. The Minimum Order Quantity (MOQ) for standard configurations is typically 50 units. For custom finishes or non-standard driver configurations, an MOQ of 100-200 units may apply. Our standard production lead time is 15-20 working days for orders up to 500 units. We encourage you to contact our sales engineers with your specific project needs for a detailed quotation and lead time estimate. We provide comprehensive support, including the provision of IES and LDT photometric files for lighting simulation in software like DIALux.

Frequently Asked Questions

Q: What is the rated lifetime and warranty for the X5 D145 downlight?

A: The X5 D145 comes with a comprehensive 5-year warranty covering the entire luminaire, including the LED COB and the driver. It is engineered for longevity, with a rated L80B10 lifetime of over 50,000 hours. This means that after 50,000 hours of operation, 90% of the luminaires will still maintain at least 80% of their initial light output, ensuring a long and reliable service life in commercial applications.

Q: Can I get a fire-rated version for a project in the UK?

A: While the standard X5 D145 is IP20 rated and not inherently fire-rated, we can accommodate such requirements for specific projects. For projects in the UK or other regions requiring fire rating (e.g., 30, 60, or 90 minutes), we can supply the luminaire with a compatible fire hood. Please specify this requirement upfront, as it involves an accessory and may have an MOQ of at least 100 units.

Q: What is the typical lumen output and efficacy for the 20W version?

A: The 20W version (XH-DL-20W-X5) offers excellent performance. Depending on the specified CCT and CRI, the efficacy ranges from 100 to 130 lumens per watt (lm/W). For a standard 4000K, CRI80+ configuration, you can expect a lumen output of approximately 2400 lumens. For a high-CRI 3000K, CRI95+ version, the output would be closer to 2000 lumens. We provide specific photometric data for each configuration.

Q: What is the SDCM for the LEDs used in the X5 series?

A: We guarantee superior color consistency across all our architectural fixtures. The X5 COB series is exclusively manufactured using LEDs that fall within a <3 Step MacAdam Ellipse (SDCM). This tight binning ensures that there are no visible color variations between individual downlights in an installation, which is critical for creating a high-quality, professional lighting scheme in spaces like galleries, high-end retail, and corporate offices.

Request IES files and a quotation

To fully evaluate the X5 D145 for your project, we provide complete technical documentation, including detailed datasheets and photometric files. Let our team of application engineers assist you with a lighting layout in DIALux or provide a competitive quotation based on your project's unique requirements. At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we are committed to delivering high-performance, customized lighting solutions with dedicated support for our clients in the EU, US, and the Middle East.