LED DOWNLIGHT · SURF-C SERIES
SURF-C No-Cutout Family
8W-36W · 1040-4680lm · surface mounted SMD downlight 2.5-8 inch for hotels, corridors and lobbies.
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SURF-C 2.5-8 inch surface mounted SMD downlight for hotels in white finish — low glare UGR22 comfort light.
SURF-C Surface Mounted SMD Downlight
SURF-C series · 8-36W · 130lm/W · Ra80 · 60° diffuse · UGR<22
The SURF-C is an 8-36W surface mounted SMD downlight 2.5-8 inch for hotels covering 8W to 36W (1040lm to 4680lm) at 130lm/W with a fixed 60-degree SMD diffuse beam at CRI Ra80 — one family mounts straight onto concrete with no cutout.
This low glare surface downlight holds UGR under 22 with a 35mm deep anti-glare cup for hotel corridors, lobbies and guestroom entries. It drops into a garden and hotel lighting solution with bollards and wall packs as the indoor comfort layer, while IRIS-S tiltable surface downlight stays the aimable accent alternative.
- 8-36W rated power, 1040-4680lm at 130lm/W
- SMD diffuser 52-165mm, 60° diffuse at Ra80
- UGR<22, 35mm deep anti-glare cup
- 2.5-8 inch, no cutout, 4 cup finishes
Explore SURF-C Surface Mounted Family
130lm/W SMD diffuse downlight for hotel comfort light
The 8-36W surface mounted SMD downlight 2.5-8 inch for hotels pairs a high-efficacy SMD platform with a deep anti-glare cup. This low glare surface downlight keeps UGR under 22 across 8W to 36W for corridors, lobbies and guestroom entries.
Six Sizes, One Face From 2.5 to 8 Inch
One order covers entries to lobbies
The SURF-C family spans 2.5 inch (Ø74×H70mm, 8W) to 8 inch (Ø199×H91mm, 36W) with the diffuser lens growing 52mm to 165mm alongside — small heads wash entries, large heads carry tall lobbies, and every size shares one cylinder face so mixed ceilings stay calm.
- 8-36W at 130lm/W, 1040-4680lm by size
- 2.5-3.5 inch 8-12W for entries and niches
- 4-5 inch 15-18W for standard corridors
- 6-8 inch 26-36W for tall lobbies; 220-240VAC, IP20 indoor
35mm Deep Cup, 60° Optical Anti-Glare
Deep barrel ring hides the source
The 35mm deep barrel sets the SMD diffuser back behind a ring reflector, so the 60-degree optical beam leaves the cup soft with no stray color and clean penetrating light — guests see lit floors, never the source, holding UGR under 22 at hotel ceiling heights.
- 35mm deep cup hides the SMD source from standing eyes
- 60° optical beam, even wash with no stray color
- High efficacy 130lm/W, glare-free penetrating light
- UGR<22 for corridors, lobbies and guestroom entries
No Cutout Plus Four Cup Finishes
Surface base fits concrete slabs
The round base screws straight onto concrete and finished plasterboard with no cutout, covering a standard junction box — and white, black, gun black and bright silver cups match pale ceilings, dark wood or metallic trims across all six sizes.
- No-cutout surface base for concrete and plasterboard
- White, black, gun black and bright silver cups
- Three whites 3000/4000/6000K for lobby to corridor zones
- Non-dim default; TRIAC, 0-10V and DALI optional
Why SURF-C for Hotels
Fixed wash where ceilings cannot be cut
One Family, Three Hotel Zones
Corridors and guestroom entries take the small end of the family — 2.5 to 4 inch housings at 8–15W, SMD 60° frosted — giving a soft, even wash that guides guests without glare. Because every size shares one cylinder face and four cup finishes, a corridor run reads as one continuous language with the lobby beyond.
Lobbies take the large end — 5 to 8 inch housings at 18–36W, SMD 60° for high, even general light — while walls that need aiming get the IRIS-S tiltable surface downlight at 0-90° plus 355° rotation from the same no-cutout idea. One order covers fixed wash and aimable accent together instead of splitting the job across two suppliers. Where 75–120mm ceilings take splashes, use the MIST-P DL03 front-IP44 family instead; where the ceiling is still open and can take a hole, the PURE-S DL02 recessed family covers the same 2-8 inch look with cutouts.
| Model | Mounting | Adjustment | Best for |
|---|---|---|---|
| SURF-C SD01 | Surface-mounted, no cutout | Fixed 60° wash | Concrete slabs, entries and lobbies |
| IRIS-S SL | Surface-mounted, no cutout | 0-90° tilt + 355° rotation | Rotating displays, aimable accent |
| PURE-S DL02 | Recessed, cutout Ø55-200 | Fixed 60° wash | New ceilings, same family look |
Datasheet
Select a size to view full specifications
| LC-SD01-8W | |
|---|---|
| Model | LC-SD01-8W |
| Wattage | 8W ±5% |
| Lumen Output | 1040lm at 130lm/W |
| Size (Ø x H) | Ø74×H70mm |
| Family Size | 2.5 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 52mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
| LC-SD01-12W | |
|---|---|
| Model | LC-SD01-12W |
| Wattage | 12W ±5% |
| Lumen Output | 1560lm at 130lm/W |
| Size (Ø x H) | Ø94×H70mm |
| Family Size | 3.5 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 72mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
| LC-SD01-15W | |
|---|---|
| Model | LC-SD01-15W |
| Wattage | 15W ±5% |
| Lumen Output | 1950lm at 130lm/W |
| Size (Ø x H) | Ø119×H73mm |
| Family Size | 4 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 92mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
| LC-SD01-18W | |
|---|---|
| Model | LC-SD01-18W |
| Wattage | 18W ±5% |
| Lumen Output | 2340lm at 130lm/W |
| Size (Ø x H) | Ø140×H76mm |
| Family Size | 5 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 112mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
| LC-SD01-26W | |
|---|---|
| Model | LC-SD01-26W |
| Wattage | 26W ±5% |
| Lumen Output | 3380lm at 130lm/W |
| Size (Ø x H) | Ø159×H80mm |
| Family Size | 6 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 133mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
| LC-SD01-36W | |
|---|---|
| Model | LC-SD01-36W |
| Wattage | 36W ±5% |
| Lumen Output | 4680lm at 130lm/W |
| Size (Ø x H) | Ø199×H91mm |
| Family Size | 8 inch |
| Mounting | Surface mounted, no cutout |
| Light Source | SMD diffuser 165mm, 60° diffuse |
| CRI / CCT | Ra80; 3000K / 4000K / 6000K |
| Glare | UGR<22, 35mm deep anti-glare cup |
| Voltage / PF | 220-240VAC 50/60Hz; PF>0.9 |
| Dimming | Non-dim default; TRIAC / 0-10V / DALI optional |
| Cup Finishes | White / Black / Gun black / Bright silver |
FAQ
Quick answers about the SURF-C surface family
Match the optic to the zone — small entries take the 2.5 to 4 inch heads at 8-15W, standard corridors take the 5 inch head at 18W, and tall lobbies take the 6 to 8 inch heads at 26-36W. All six share one surface face design, so a mixed hotel floor reads as one language from the LED downlight family index.
Yes, heat is the design point — the 35mm deep cup plus the ring reflector hides the SMD source from view at standing eye angles, holding UGR under 22 with a soft 60-degree wash. For adjustable accent instead, see IRIS-R tiltable downlight for boutiques and hotels.
Yes for typical 2.6-3.5m ceilings — the round base screws to concrete slabs and finished plasterboard and covers a standard junction box, so retrofit hotels skip re-plastering entirely. Where the ceiling is still open and can take a hole, use IRIS-S surface mounted downlight instead.
Yes, all nine trims run the full 2.5 to 8 inch range — white cups vanish into pale ceilings, black cups read as deliberate accent gear on dark wood, gun black suits bronze and brass details, and bright silver matches metallic trims. All four cups run the full range, so confirm the ceiling finish in the inquiry and the factory kits one color across sizes.
Warm white 3000K flatters lobbies and guestroom entries, neutral 4000K suits corridors where staff need true judgment, and cool 6000K fits high commercial halls. Mixed floors keep one fixture look while each zone gets its own white, all at CRI Ra80.
Stay with SURF-C for calm fixed wash; choose IRIS-S for aimable accent — SURF-C wins when corridors and lobbies need even 60-degree light with zero re-aiming, IRIS-S wins when displays move weekly and heads must tilt 0-90 degrees plus 355-degree rotation, and both mount with no cutout so mixed retail floors still match.
Application
SURF-C in hotel corridors, lobbies and guestroom entries
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