Surface Mounted LED Downlights COB Round 10W-35W ILED-DL-B S2

The ILED-DL-B S2 is a surface-mounted LED downlight. The housing is square — despite the round wording in the product title — and mounts flush on a ceiling or wall without the cutout work a recessed fixture needs. It suits spaces where the ceiling cannot be opened, such as concrete slabs and solid wood ceilings, and it installs in minutes on any flat surface.

Range and models

Four sizes cover the range. The ILED-DL3-B S2 is 9W with 900 lm, 90mm by 90mm. The ILED-DL4-B S2 is 18W with 1,800 lm, 110mm by 120mm. The ILED-DL5-B S2 is 28W with 2,800 lm, 130mm by 135mm. The ILED-DL6-B S2 is 35W with 3,500 lm, 160mm by 165mm. Lumen efficacy is 100 lm/W across the range, so the larger models get their output from bigger light sources rather than running the LEDs harder.

Light source

The fixture uses a CREE COB (chip-on-board) LED, with color rendering index above 92. That is high enough for retail displays, artwork, and any space where fabric or skin tones matter. Color temperature is selectable between 2800K, 4000K, and 6000K, covering warm residential light through cool daylight tones. The switch is on the driver, so the CCT can be set on-site after installation.

Power and driver

The driver is Tridonic, a brand commonly used in commercial lighting. Input voltage accepts 220-240VAC or 110-277VAC. Power factor is above 0.9. The fixture is electrical Class I, so it uses an earth connection. Because the driver is built in, there is no external driver box to hide or mount.

Beam and coverage

The beam angle is 60°, which concentrates the light into a defined pool rather than washing a wide area. This suits accent and task lighting — counters, displays, and work surfaces. The higher models use larger housings for more heat surface, not a wider beam. For general room wash, layer fixtures or pair with wider-beam units.

Construction and IP rating

The body is die-cast aluminum with a PC lens, in white or black finish. The aluminum housing handles heat passively, so there are no fans and no moving parts. IP42 and IP44 are both available; pick the rating at order. IP42 covers normal indoor use, and IP44 adds splash protection, which suits kitchens and semi-exposed areas. The rating is fixed at build time, so decide before ordering.

Dimming options

Three dimming options are offered, selected at order: Triac for standard wall dimmers, 0-10V for analog control systems, and DALI for networked building control. The Tridonic driver is fixed at build time, so match the option to the control system before ordering.

Installation

Surface mounting is a screw or clip job — no cutout, no ceiling cavity requirement. Mark the fixing points, mount the plate, and seat the fixture. The driver connections are accessible before the trim closes. This makes the fixture a practical pick for retrofit work on solid ceilings where recessing is impossible.

Warranty and certifications

Warranty is 3 to 5 years depending on configuration. The fixture carries SAA, CE, and RoHS certifications.

Typical use cases

Retail uses the high CRI and 60° beam to light shelves and displays. Kitchens and counters use the 2800K setting with Triac dimming. Offices use DALI or 0-10V control for zoning. Hotel corridors use the IP44 version where splash protection matters. Spaces with solid ceilings — concrete, tile, or wood — use the surface mount because there is no cutout to make. The combination of a Tridonic driver and a CREE COB source is the same class of parts found in commercial-grade lighting, which is why the fixture is a common pick for projects that need reliable performance.

Buyers choose the ILED-DL-B S2 for a few specific reasons:

Surface mount. No ceiling cutout needed. On concrete slabs, tile, or solid wood ceilings, this mounts directly — which is the difference between installing and opening up the ceiling.

High CRI. CRI above 92 from the CREE COB source. Retail displays, artwork, and anything with fabric or skin tones show colors accurately.

Tridonic driver. The driver is a Tridonic unit, common in commercial lighting, and it is selected at order to match Triac, 0-10V, or DALI control.

Switchable color temperature. 2800K, 4000K, and 6000K are set with a switch. One fixture type covers rooms with different CCT needs, which cuts the number of SKUs an installer carries.

Choice of IP rating. IP42 for normal indoor use, or IP44 where splash protection matters. Pick the version that matches the space.

Retrofit-friendly. Because nothing is recessed, the fixture suits rented spaces and ceilings that cannot be cut into.

The ILED-DL-B S2 fits several settings where surface mounting and accurate color matter:

Retail displays. The CRI above 92 and 60° beam light shelves and displays accurately, with the beam kept on the product rather than spilling onto the floor.

Kitchens and counters. The 2800K setting gives a warm tone over prep surfaces, and the IP44 version handles the steam and splash of a cooking area.

Offices. DALI or 0-10V control zones the light over workstations, and the 60° beam keeps light on the desk rather than in the eyes of the person across the room.

Hotel corridors. The surface mount fits concrete hotel ceilings without cutout work, and the IP44 version suits service areas.

Galleries and artwork. The CRI above 92 keeps colors true, and the defined 60° beam washes individual pieces.

Solid-ceiling spaces. Concrete slabs, tile, and wood ceilings that cannot be opened use the surface mount — the fixture is simply screwed or clipped on.

Showrooms and meeting rooms. The 35W model at 3,500 lm covers larger displays, and Triac dimming adjusts the level for presentations.

Bedrooms and living areas. The 2800K setting with Triac dimming gives warm evening light, and the surface mount needs no ceiling work.

A few things to check before ordering:

Housing shape. The housing is square, not round. Confirm the look works for the space — the sizes run 90x90mm up to 160x165mm.

Dimming option. Triac, 0-10V, and DALI are selected at order, and the driver is fixed at build time. Match the option to the control system already in the building.

IP rating. IP42 covers normal indoor use. IP44 adds splash protection for kitchens and semi-exposed areas. The rating is fixed at order and cannot be changed later.

Beam angle. The 60° beam is for accent and task lighting. For general room wash, this fixture is not the right pick — layer fixtures or use a wider-beam model.

Color temperature. The 3CCT switch sets 2800K, 4000K, or 6000K on-site. If the room has other fixtures, set them all to the same CCT before locking in the switch.

Surface condition. The fixture mounts on the ceiling or wall surface. Confirm the surface can take the mounting hardware before ordering.