Round Waterproof D158 LED Downlight 20-30W

What is the Round Waterproof D158 LED Downlight and where is it specified?

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, we engineer lighting solutions for professional specification in the EU, US, and Middle East markets. The Round Waterproof D158 LED Downlight is a high-performance luminaire from our IP65-rated series, specifically designed for commercial environments where moisture, dust, and durability are primary concerns. Available in 20W and 30W power configurations, this downlight provides powerful and efficient illumination from a discreet source. Its robust construction, featuring a body of ADC12 die-cast aluminum, ensures superior thermal management and resistance to corrosion, making it the ideal choice for luxury hotel bathrooms, spas, commercial kitchens, fitness centers, and covered outdoor architectural elements like soffits and canopies. The fixture requires a standard D145mm cutout for seamless integration into various ceiling types.

Photometric and electrical specification

The D158 series is built to meet stringent international standards, offering a wide array of customizable options to match precise project requirements. We provide full photometric data to support your design process.

Parameter	Specification	Standard	Notes
Optics - CCT	2700K, 3000K, 3500K, 4000K, 5000K, 6500K	ANSI C78.377	Tunable White (TW) and Dim-to-Warm (DTW) options available upon request.
Optics - Color Quality	CRI 80+, 90+, 95+, 98+	TM-30 Rf >90, Rg >98	IES TM-30-18
Optics - Glare Control	UGR<19, UGR<22 (configuration dependent)	EN 12464-1	Achieved via a deep-set COB LED and a precision-engineered reflector system.
Optics - Beam Angles	15°, 24°, 38°, 60°	N/A	Hybrid lens and reflector optics ensure a clean, well-defined beam with minimal spill light.
Electrical - Power/Efficacy	20W / 30W	Up to 130 lm/W	LM-79
Electrical - Driver	Tridonic, Mean Well, Osram, Philips, BOKE, Lifud	CE, UKCA	Flicker-free performance. Offered with a standard 5-year warranty.
LED Chip	Bridgelux, Citizen, CREE, Philips, Luminus	LM-80	All chips binned to a 3-Step MacAdam Ellipse (SDCM<3) for superior color consistency.
Housing - Construction	ADC12 Die-cast Aluminium	IP65 Rated (IEC 60529)	Standard finishes: Matt White (RAL9016) or Matt Black (RAL9005). Custom RAL available.
Certification	CE, RoHS, ErP, ISO9001	Relevant EU/Global Directives	Fully compliant for export to European, North American, and Middle Eastern markets.

Which spaces is it designed for?

This IP65 downlight offers the versatility for specification across multiple demanding commercial sectors, where both performance and protection from the elements are non-negotiable.

How can this downlight be used in high-end hotel bathrooms and spa facilities?

For luxury hospitality environments, the D158 downlight is an exceptional choice. Its IP65 rating allows for safe installation in wet locations, including Zone 1 areas like shower enclosures and spaces above bathtubs. Specifying a high CRI of 90+ ensures flattering light for skin tones, enhancing the guest experience. The availability of warm CCTs like 2700K and 3000K, combined with smooth DALI or 0-10V dimming, helps create a relaxing, premium ambiance. The robust ADC12 aluminum housing resists corrosion in high-humidity environments, guaranteeing a long service life and pristine appearance.

What makes the D158 series suitable for commercial kitchens or food preparation areas?

In back-of-house areas like commercial kitchens, hygiene and visibility are paramount. The D158's IP65 sealed design prevents the ingress of steam, grease, and dust, and allows the fixture to be safely hosed down during cleaning routines. The smooth powder-coated finish is easy to wipe clean. For task-intensive food prep zones, a cooler CCT of 4000K or 5000K with a high lumen output (the 30W version can deliver over 3500 lumens) ensures excellent visibility, improving staff safety and accuracy. Its high efficacy of up to 130 lm/W also significantly reduces energy costs in facilities with long operating hours.

Can this luminaire be installed in covered outdoor areas like soffits, canopies, or porticos?

Yes, the D158 is engineered for protected exterior applications. Its IP65 rating provides complete protection against dust and driving rain, making it perfect for installation in building soffits, entrance canopies, and covered walkways. The durable die-cast aluminum housing and UV-stable powder coat finish withstand weathering. Different beam angles allow for tailored effects: a narrow 15° or 24° beam can be used to create dramatic accent lighting on columns or facades, while a wider 38° or 60° beam provides functional, welcoming ambient light for building entrances.

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

Installation is streamlined for electrical contractors. The D158 requires a standard 145mm cutout and is secured with spring clips for a firm fit in plasterboard or panel ceilings. The luminaire is supplied with a remote, plug-and-play driver, which simplifies maintenance and improves thermal management by separating the heat-sensitive electronics from the LED module.

We offer a complete suite of control options to integrate with any building management system:

• Wired: DALI-2, 0-10V/1-10V, and TRIAC (phase-cut) dimming.
• Wireless: Bluetooth Low Energy (BLE) via Casambi, as well as Zigbee, 2.4G, and DMX for dynamic color applications.

Full compliance is guaranteed. All configurations are CE and RoHS certified for the EU market and meet the latest ErP directive for energy efficiency. To support your lighting calculations and simulations, we provide comprehensive IES and LDT photometric files compatible with software like DIALux and Relux.

Customisation, MOQ and lead time

As a specialist manufacturer, we excel at tailoring products to your project's unique aesthetic and technical needs. Beyond the standard options, we offer advanced customization including:

• Custom RAL color finishes to match brand guidelines or interior design palettes.
• Specific driver brands or performance characteristics.
• Advanced LED technologies such as Dim-to-Warm (DTW), Tunable White (TW), RGB, RGBW, and RGBCW.

Our typical Minimum Order Quantity (MOQ) for custom configurations begins at 100 units. For standard models, smaller quantities may be accommodated. Standard production lead time is approximately 20-25 working days from order confirmation, with shipping arranged globally. Please contact our team to discuss your specific project volume and timeline.

Frequently Asked Questions

Q: What is the warranty on the D158 waterproof downlight?

A: The D158 series comes with a comprehensive 5-year warranty covering the LED module and the driver. We utilize high-quality components like Tridonic or Osram drivers and Bridgelux chips with L80B10 ratings exceeding 50,000 hours, ensuring long-term reliability and performance for your commercial projects.

Q: Is the IP65 rating suitable for installation directly inside a shower enclosure?

A: Yes, the IP65 rating confirms the luminaire is protected against low-pressure water jets from any direction. This makes it perfectly safe and suitable for installation in Zone 1 areas of a bathroom, including directly above or within a shower enclosure. The die-cast aluminum housing and sealed front prevent any moisture ingress, ensuring electrical safety and longevity.

Q: Can I get this downlight with a CRI of 98?

A: Absolutely. We offer ultra-high color rendering options, including CRI98+ versions, ideal for museums, art galleries, and high-end retail where color accuracy is critical. These specialist LEDs provide exceptional TM-30 metrics with Rf values over 95, delivering vivid and true-to-life colors. Please specify this requirement when requesting a quotation for accurate pricing and lead times.

Q: What is the standard cutout size for the 20W version?

A: The 20W model, designated XH-DL-20W-WP-R, requires a standard circular cutout of 145mm (5.7 inches). This size is common for commercial installations, simplifying retrofits and new builds. The fixture has an overall diameter of 158mm, providing a 6.5mm trim overlap to ensure a clean, finished look on the ceiling surface.

Request IES files and a quotation

At XHLWX (led-project-light.com), a Custom Indoor LED Lighting Manufacturer based in China, our engineering team is ready to support your project. To receive a full quotation, discuss customization options, or obtain complete IES and LDT photometric data for your lighting design simulations, please contact us today. We are experienced in delivering fully compliant, high-performance lighting solutions to specifiers, contractors, and distributors across the EU, USA, and the Middle East.