Xiaomi Smart Ceiling Light D40

The Xiaomi Smart Ceiling Light D40 is designed to deliver bright, comfortable, and natural-looking illumination for modern indoor spaces. Featuring Xiaomi's custom full-spectrum LED technology, the light closely replicates the spectrum of natural sunlight, creating a pleasant lighting environment that enhances everyday activities. Its high Ra97 Colour Rendering Index (CRI) ensures that colours are presented accurately and vividly, making furniture, décor, artwork, and household items appear more natural. The adjustable colour temperature range of 2700K to 5700K allows warm, relaxing lighting or brighter daylight-style illumination to be selected according to different needs.

A custom Xiaomi ultra-slim optical lens allows the fixture to maintain a sleek 6cm profile while delivering uniform light distribution without noticeable dark areas. The anti-glare micro-prism optical structure with a UGR<19 rating provides softer illumination that helps reduce eye fatigue during reading, working, or everyday use. An IP50 dust-resistant construction prevents dust and insects from entering the fixture, helping maintain clean illumination over time. Built-in Wi-Fi connectivity supports Xiaomi Home, allowing multiple smart control methods for convenient lighting management throughout the home.

Key Features

Custom Full-Spectrum LED

Xiaomi's custom full-spectrum LED technology is used to closely simulate natural sunlight, creating bright, balanced, and comfortable indoor lighting.

Ra97 High Colour Rendering Index

A high Ra97 CRI ensures true-to-life colour reproduction, allowing objects and interiors to appear more vibrant and accurate.

Anti-Glare Optical Structure

A micro-prism optical design with a UGR<19 rating reduces glare and provides softer lighting that helps minimise eye strain.

Ultra-Slim 6cm Design

The custom Xiaomi optical lens enables a thinner lighting structure while maintaining even illumination across the room.

Uniform Light Distribution

The upgraded optical cavity has been designed to provide consistent lighting without dark spots or uneven brightness.

IP50 Dust Resistance

The sealed construction helps prevent dust and insects from entering the light fixture, keeping the interior cleaner for long-lasting performance.

Smart Wi-Fi Connectivity

A built-in Wi-Fi module supports Xiaomi Home, allowing multiple smart control methods for a convenient smart home experience.

Specifications

Product Name: Xiaomi Smart Ceiling Light D40

Product Model: 9290041705

Application Area: Indoors

Colour Temperature: 2700–5700K

Rated Input: 100–240V, 50/60Hz, 0.52A

Rated Input Power: 45W

Colour Rendering Index: Ra97

Dust Resistance Rating: IP50

Product Dimensions: Φ450 × 60mm

Net Weight: Approx. 1.7kg

Colour: White

Package Contents

• Xiaomi Smart Ceiling Light D40 ×1
• Expansion Screw ×3
• User Manual ×1
• Warranty Notice ×1

Conclusion

The Xiaomi Smart Ceiling Light D40 is engineered to provide comfortable full-spectrum lighting with accurate colour reproduction, effective glare reduction, and reliable smart functionality. Its slim modern design, IP50 dust-resistant construction, and built-in Wi-Fi connectivity make it well suited for living rooms, bedrooms, dining areas, and other indoor spaces where natural-looking, uniform illumination is desired.