TOPSUND LIGHTING / ARCHITECTURAL CEILING LIGHTING

Architectural LED Downlights

Precise Light. Clean Architecture.

Recessed, adjustable and surface-mounted downlights for residential and commercial projects. Compare verified models, optical options and project-specific supply configurations.

01 / PRODUCT FAMILIES

One Range. Different Ceiling Solutions.

Find the suitable luminaire format before selecting power, optical performance or finish.

01 / ARD SERIES

Adjustable Recessed

Deep anti-glare optics and adjustable beam direction for architectural accents.

5–20W · 360° rotation · 0–30° tilt

02 / FIXED LIGHTING

Fixed Recessed

Controlled downward illumination where directional beam adjustment is unnecessary.

Selected range · 7–25W · IP44

03 / IP44 RECESSED

CORE IP

Recessed options for suitable bathrooms and interior areas requiring increased ingress protection.

Selected range · 8–15W · IP44

04 / SDL SERIES

Surface-Mounted

Round and square forms for ceilings without a recessed luminaire opening.

9 verified models · round & square

02 / ADJUSTABLE RECESSED

ARD — Lighting with Direction.

Six models across three recessed body platforms, designed for precise beam aiming in architectural interiors.

Select the ARD model by ceiling cut-out, luminaire height and intended lighting target. Driver compatibility and installation clearance must be checked.

ARD / SIX VERIFIED MODELS

ARD65 PLATFORM · Ø55 MM CUT-OUT

ARD65-05 — 5W · Ø65 × H80 mm

ARD65-08 — 8W · Ø65 × H90 mm

ARD85 PLATFORM · Ø75 MM CUT-OUT

ARD85-10 — 10W · Ø85 × H92 mm

ARD85-12 — 12W · Ø85 × H102 mm

ARD105 PLATFORM · Ø95 MM CUT-OUT

ARD105-15 — 15W · Ø105 × H115 mm

ARD105-20 — 20W · Ø105 × H125 mm

15° / 24° / 36° / 55° beams · Ra 90 · 2700–6500K · up to 110 lm/W · 360° rotation and 0–30° tilt.

03 / SURFACE-MOUNTED

SDL — Clean Forms. Flexible Supply.

Nine verified SDL models with shared optical options and a considered architectural finish.

SURFACE INSTALLATION / NO CEILING CUT-OUT

Round or Square.

SDL downlights are mounted onto the ceiling surface and offered in published round and square sizes. Select the body format, power level, optic and finish around the project.

100 lm/W · Ra >90 · 20° / 40° / 60° beams · IP21 · AC220–240V

ROUND / SIX MODELS

Cylindrical Formats

SDL-R74-12 · 12W · Ø74 × 75 mm

SDL-R90-15 · 15W · Ø90 × 90 mm

SDL-R111-25 · 25W · Ø111 × 110 mm

SDL-R132-35 · 35W · Ø132 × 130 mm

SDL-R171-45 · 45W · Ø171 × 170 mm

SDL-R195-55 · 55W · Ø195 × 190 mm

SQUARE / THREE MODELS

Geometric Formats

SDL-S74-15 · 15W · 74 × 74 × 75 mm

SDL-S92-20 · 20W · 92 × 92 × 90 mm

SDL-S113-28 · 28W · 113 × 113 × 110 mm

No recessed ceiling cut-out required. Confirm finish, colour temperature, driver and final electrical arrangement before ordering.

04 / INSTALLATION

Start With the Ceiling.

Ceiling construction, luminaire depth and driver clearance should be checked before a model is confirmed.

01 / CEILING VOID

Confirm the Depth

Measure usable ceiling space against luminaire height, spring clips, fixing details and cable routing.

02 / SEPARATE DRIVER

Allow Driver Space

The luminaire and driver are separate installation constraints. Confirm both dimensions and the permitted wiring arrangement.

03 / INSTALLATION FORMAT

Choose the Right Format

Recessed, semi-recessed and surface-mounted options solve different ceiling conditions; confirm the selected model.

Limited ceiling depth? Selected ultra-shallow luminaires start from 25 mm height, with a matching 25 mm high remote-driver option. This does not guarantee fit in every ceiling; verify the complete installation.

05 / OPTICS & CONTROL

Specify the Light, Not Just the Wattage.

Beam, colour quality, visual comfort and the driver must work together for each project.

BEAM ANGLE

Focused or General

Select beams for accent targets or broader coverage. Options vary between ARD, SDL and other families.

COLOUR QUALITY

CRI & CCT

Specify light colour and rendering for the actual product version, rather than assuming every option is universal.

VISUAL COMFORT

Manage Glare

Evaluate recessed depth, optical design and viewing positions for the required visual comfort.

DRIVERS & CONTROLS

Check Compatibility

TRIAC, 0–10V, DALI or smart-control requirements must be checked against the selected driver and luminaire.

TECHNICAL READING

Details Behind the Ceiling.

Review installation finish and beam aiming before confirming the product schedule. These guides support early selection; final model specifications take priority.

Trim vs Trimless Downlights → Downlight vs Spotlight →

06 / APPLICATIONS

Lighting for Real Spaces.

Downlight selection depends on the spatial task and the ceiling conditions, not only on appearance.

RESIDENTIAL

Calm, Layered Light

Coordinated ambient lighting with selective accents for furniture, materials and architecture.

RETAIL & SHOWROOM

Accents that Direct Attention

Define display zones and illuminate merchandise with suitable directional optics.

HOSPITALITY

Comfort Across Spaces

Coordinate downlighting across guest rooms, corridors and shared interiors.

07 / PROJECT SUPPORT

Built Around Your Project.

For distributors, contractors and lighting project buyers, Topsund supports coordinated selection and supply.

Product Matching

Review fixture schedules, dimensions, beams, finish choices and installation conditions.

Customisation

Discuss feasible finishes, optics and driver requirements for the selected model and quantity.

Sample Verification

Check appearance, fit, optical performance and appropriate electrical configuration before volume orders.

Flexible Project Supply

Small-batch and mixed-model enquiries are welcome. MOQ, lead time and delivery terms are confirmed per quotation.

Using an earlier Topsund specification? KARENA and REO IP65 are legacy references, not confirmed current ARD / SDL models. Share an old model number or photo so we can check availability or recommend an appropriate alternative.

Useful enquiry details: ceiling drawing · quantity · cut-out & depth · beam angle · CCT · finish · dimming/control method · target delivery date

08 / TECHNICAL FAQ

Common Project Questions.

Answers to early-stage product selection and specification questions.

How much ceiling space is required for recessed downlights?

It depends on the luminaire height, fixing method, cable entry and driver arrangement. Check the complete installation drawing for the selected model.

What is the difference between trim and trimless downlights?

Trimmed luminaires have a visible perimeter flange; trimless designs integrate more closely with the finished ceiling and require an appropriate mounting detail. Read the guide →

Should I choose fixed or adjustable downlights?

Choose adjustable models for beam aiming toward defined targets and fixed models for direct downward illumination. Downlight vs spotlight →

Can I order different beam angles and CCTs?

Multiple configurations may be possible within a family. Share the model numbers and project schedule to verify available combinations.

Are all downlights suitable for bathrooms?

No. IP ratings differ: the selected CORE IP range is IP44, while published SDL models are IP21. Requirements for wet locations must be checked individually.

Are DALI and smart dimming supported?

Compatibility depends on the luminaire version, driver and control architecture. Specify the intended dimming method so a compatible configuration can be checked.

Are KARENA and REO IP65 still available?

They appear in earlier Topsund material but their current supply status has not been verified. Please send a reference number or photo for confirmation.

What information is needed for an accurate quotation?

Send the ceiling or fixture schedule, approximate quantities, installation dimensions, finish, beam, colour temperature and control requirements.

PROJECT ENQUIRIES

Plan Your Downlight Project.

Share your ceiling conditions, fixture schedule and preferred configurations. We will help confirm suitable downlights and prepare a project quotation.