Ruizhi II Downlight
CRI ≥98, SDCM at or below 2, UGR at or below 6, cut-off beyond 45°; about 15% better cooling, 30% more light on target and a ten-year warranty.
Ruizhi II is the most-awarded downlight in SUFN’s standard range, taking a China Good Design award under the Red Dot programme and the 2024 iF Product Design Award, backed by two utility-model and two design patents. It addresses the hardest contradiction in trackless lighting: enough light on the task, with no source visible from eye level.
About 15% better heat dissipation
A streamlined fin-tube form with a dual-layer convection path and multiple internal air channels lifts dissipation by roughly 15% over a conventional sink of the same material, extending service life.
Concealed tilt-shift, about 30% more light
As the bezel tilts, the LED module shifts 6 mm sideways, recovering roughly 30% of the light a non-shifting design would lose at the aperture.
Polarised wall-wash and low-profile body
Polarised wall-wash output is even and free of stray pools, while the low-profile body suits lower ceilings and finished ceilings.
Six reflector finishes, multiple beams
Six anti-glare reflector finishes from glossy black to matte silver. Standard beams of 15°, 24° and 36°, with Φ60/Φ75 optics customisable from 3° to 60°.
Specification
| Item | Value | Notes |
|---|---|---|
| Colour rendering | CRI ≥98 | SUFN monochromatic light, co-developed with Dr. Luke Ma’s TM-30 group for Asian visual perception. |
| Colour tolerance | SDCM ≤2 | Far inside the national requirement, so fixtures in one room stay visually matched. |
| Glare | UGR ≤6, cut-off >45° | Custom anti-glare lens plus black-glare design: the light is visible, the source is not. |
| Beam angle | 15° / 24° / 36° (standard) | Φ60 / Φ75 optics customisable to 3°, 7°, 10°, 45°, 50° and 60°. |
| Cut-out | Set by the optical size | Φ60 and Φ75 optics take different cut-outs; confirm against the specification sheet and layout before ordering. The eye-care spotlight in the same family offers 55, 65 and 75 mm. |
| Reflector finish | 6 options | Glossy black, moonlight silver, champagne gold, ivory, deep-space black, matte silver-grey. |
| Ingress protection | IP54 | Professionally sealed against moisture and haze for living rooms, bedrooms, corridors and balconies. |
| Body & cooling | Fin-tube dual-layer convection | Roughly 15% better than a conventional sink of the same material. |
| Light source | Imported high-CRI LED chip | Paired with SUFN monochromatic light; low depreciation and low energy use in normal home use. |
| Driver | Constant-current, regulated, flicker-free | Supports DALI, 0–10V, phase-cut and SUFN OS smart dimming to 0.01%. |
| Adjustment | Tiltable with a concealed 6 mm shift | Tilt and shift act together, recovering about 30% more light. |
| Awards & patents | China Good Design, iF Product Design Award 2024 | Plus two utility-model patents and two design patents. |
| Certification | CCC / CE / RoHS | Five factory checks: source, burn-in, voltage stability, flicker and cosmetic. |
| Warranty | 10 years | Residential interiors only; hotels, clubs and other projects carry three years. |
Choosing a beam angle
| Beam | Typical target | Practical note |
|---|---|---|
| 3° / 7° / 10° | Artwork at a distance, sculpture, display | Custom optics — specify the optical size and mounting height at order. |
| 15° | Nearby wall art, the centre of a dining table, floral displays | Balances washing and accent; a common default in residential work. |
| 24° | General accent, corridors, shelving | The balance between coverage and illuminance, and the most used beam in whole-home work. |
| 36° | Wall-washing and feature walls | Even over large surfaces; on textured plaster, pair with a polarised wall-wash to avoid overlapping pools. |
| 45° / 50° / 60° | Ambient base light, low-ceilinged rooms | Higher illuminance per lumen at the same output — dim accordingly to avoid over-lighting. |
In use
Frequently asked questions
QWhat is the cut-out size for Ruizhi II?
The cut-out follows the optical size; Φ60 and Φ75 optics take different openings. Confirm against the current specification sheet and layout before ordering. The eye-care spotlight in the same family is offered in 55, 65 and 75 mm.
QCan the fixture be bought without a driver?
Not recommended. The cooling, flicker and dimming performance of the Ruizhi II is tied to a constant-current driver. SUFN supplies DALI, 0–10V and phase-cut versions — constant-current, regulated and flicker-free, with a five-year warranty on the driver.
QCan Ruizhi II join SUFN OS?
Yes. Smart dimming and tuning circuits run on SUFN OS with a 0.01% dimming depth; scene logic executes on the local gateway and keeps working offline. Confirm that the circuit's dimming method matches the driver before commissioning.
QDoes non-professional installation void the warranty?
It does. Wiring faults, fixture damage or ceiling damage caused by non-professional installation are not covered. Use a qualified electrician or installer; SUFN supplies full manuals, illustrated guides and HD commissioning videos.
Indoor lighting product series
The models, parameters and mounting details of these series are stated in the official product manual and current datasheet. Get the full specification sheet in the enquiry form below.
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