Top Class Recessed COB LED Downlight 3-8 inch 10-40W ILED-DL-A D1

The ILED-DL-A D1 is a recessed COB downlight for ceilings that need the general light to read well on colour, not just to be bright. The four sizes run from the 13W 3-inch head to the 40W 8-inch head, all from a single CREE COB rather than a ring of SMD points, and the COB is what the CRI above 92 rests on: one even source, one clean field of light, no colour fringing between separate dots.

The four sizes

The ILED-DL3-A D1 is the 13W, 1500 lumens, a φ110mm body into a φ95mm cutout. The ILED-DL4-A D1 is 18W, 2000 lumens, Φ145mm into Φ120-130mm. The ILED-DL6-A D1 is 30W, 3200 lumens, Φ190mm into Φ165-170mm. The ILED-DL8-A D1 is the 40W, 4300 lumens, Φ230mm into Φ200-210mm. All four run at 110 lumens per watt from the CREE COB, so the bigger models get their output from a bigger light source, not from running the chip harder. That is the difference between this and a cheaper downlight that quotes a big wattage and a small lumen number.

Colour rendering is the point

CRI above 92 is the reason this range exists alongside the SMD D2 series. On a shop floor, a hotel corridor or a restaurant dining room, the difference between CRI 82 and CRI 92 shows up in the merchandise, the food and the guests’ skin tones, and the COB source holds that figure across the beam, not just at the centre. Colour temperature runs 2800K to 6500K, from a warm tungsten match to a cool daylight tone, and power factor is above 0.9.

Beam and distribution

The beam is 60°, wide enough for general lighting and defined enough to keep the light on the floor plan rather than on the walls. The diffuser on the front smooths the COB into one even field. For tighter accent work the D10 gimbal head is the member of the family to reach for; the D1 is the fixture that lights the room.

Dimming and control

The driver options are DALI, Triac and 0-10V, specified at order time because the fixture is built around the option chosen. Triac runs from a plain wall dimmer, DALI ties into a building management bus, and 0-10V takes an analog control signal. An emergency kit is available on the same body, so a corridor that needs a held level on a power cut uses the same fixture as the rest of the ceiling.

Body and installation

The body is aluminum with a PC diffuser, in white or black, and it recesses into the cutout on the spring clips. Electrical classification is Class II double-insulated, so the fixture does not need an earth at the position. Input is 220-240VAC or the wide 110-277VAC version depending on the market, and the rating is IP42 or IP44 depending on the model, so the IP44 versions go over a bathroom splash zone without a second fixture family. The spring-clip mounting is the same across the range: cut the hole, wire the driver, push the clips up.

Var den används

Retail floors, where CRI above 92 keeps the stock reading true under the general light. Hotels, where the same range serves the corridor, the room and the bathroom ceiling on the IP44 versions. Restaurants, where the food has to look like the menu photograph. Offices and lobbies that want the general light to flatter the people in it. And residential living rooms and kitchens, where one range covers the whole job from the 13W head to the 40W.

Vad finns i förpackningen

Each unit ships as a single downlight with the driver wired in, the spring clips fitted and the terminal block ready to connect. The driver type, Triac, DALI or 0-10V, and the colour temperature are the choices to confirm at order, because the fixture is built around them. No lamp to buy separately: the CREE COB is part of the fixture, and the diffuser is fitted at the factory.

Why do buyers pick the ILED-DL-A D1 over the alternatives? Here is what we hear from customers:

CRI above 92 from a COB. The single CREE COB holds CRI 92 across the whole beam, the level retail and hospitality work asks for when the merchandise, the food or the guests have to look right.

Real output at the wattage. All four sizes run at 110 lumens per watt, so the 40W head puts 4300 lumens into the room, and the range holds up when a specifier compares lumens, not wattage.

One range, three driver types. Triac for a wall dimmer, DALI for a control bus, 0-10V for an analog circuit, plus an emergency kit on the same body, so the whole ceiling runs on one fixture family.

Class II, no earth at the fixture. Double-insulated construction simplifies the install where pulling an earth to every position is awkward, and the dual-voltage input serves both markets.

The IP44 versions go over wet zones. On the IP44 models, the same fixture that lights the bedroom goes over the bathroom splash zone, so a flat does not need a second downlight family.

The ILED-DL-A D1 is the colour-critical general light of the family: the CREE COB and the CRI above 92 are what make the merchandise, the food and the people under it look right.

Retail floors. The general light has to be honest before the accent heads do the featuring, and CRI above 92 is what keeps the stock reading true between the spots. The 30W and 40W heads carry the aisles; the 13W and 18W heads cover the fittings rooms and the till points.

Hotels. The same range serves the corridor, the room and the bathroom ceiling on the IP44 versions, dimmed on Triac from the bedside or on DALI from the reception. The CRI 92 light is what makes the rooms photograph the way the brochure promises.

Restaurants and cafes. The food has to look like the menu photograph, and the warm end of the 2800K to 6500K range under a CRI 92 COB is what does it. The 13W head suits a dining table pool; the 30W covers the service area.

Offices and lobbies. Where the general light flatters the people in it as well as the fit-out, the COB’s even field avoids the multi-shadow look of SMD arrays, and the DALI driver ties the ceiling into the building management.

Residential living rooms and kitchens. One range covers the whole job from the 13W head over the seating to the 40W over the bench, all on the same dimmer, with the IP44 model over the wet zones.