The ILED-DL-B T1 is a recessed LED downlight with a Fresnel lens and low UGR, built for offices, schools, retail, and hospitality where glare at desk height or eye level is a real issue. The Fresnel optic spreads light evenly over a 120° beam, which keeps the floor evenly lit without bright spots directly under the fixture.
Range and models
Four models share the same design and differ in size. The ILED-DL3-B T1 is 10W with 1,200 lm, housing 110mm in diameter by 50mm deep, cutout 95mm. The ILED-DL4-B T1 is 15W with 1,800 lm, 140mm by 55mm, cutout 125mm. The ILED-DL6-B T1 is 20W with 2,400 lm, 165mm by 60mm, cutout 150mm. The ILED-DL8-B T1 is 30W with 3,600 lm, 220mm by 67mm, cutout 200mm. Lumen efficacy is 120 lm/W across the range, so the higher models get their output from larger light sources, not from running the LEDs harder.
Fresnel lens and UGR
The Fresnel lens is the defining feature of this series. It takes the source light and spreads it into a uniform 120° wash, which is what keeps the UGR low. In practice this means a person sitting at a desk under one of these fixtures does not see a bright source in their field of view. The trade-off is a softer, more diffused light than a standard downlight with a focused reflector. The same optic principle is used in professional lighting where even spread matters more than peak intensity.
Light source
The fixture uses LM80-certified LEDs, a rating that tracks lumen maintenance over time. Color rendering is available in two grades: CRI above 82 as the standard option, or CRI 90 when color accuracy matters — galleries, fashion retail, and showrooms are the usual cases. Color temperature is selectable between 3000K, 4000K, and 6000K via a switch, so the CCT can be set on-site after installation to match the room. Eight color reflectors are available, chosen at order, so the fixture can match the ceiling finish.
Power and electrical
Input voltage accepts 220-240VAC or 110-277VAC. The fixture is electrical Class II, so it does not need an earth connection. Power factor is above 0.9. The driver is built in, so there is no separate driver box to fit above the ceiling — one less component in the cavity.
Construction and IP rating
The body is aluminum with PC optics, in white or black finish. The standard rating is IP42, which covers normal indoor use. IP54 is available as an option for dusty or damp areas such as corridors, workshops, and semi-exposed spaces. Choose the rating at order time; it is not field-convertible, so decide based on the actual environment before ordering.
Control options
Four functions are offered, selected at order: DALI for networked building control, Triac dimming for standard wall dimmers, 0-10V for analog control systems, and an emergency version that keeps the fixture lit from a backup supply during a power outage. The emergency version needs separate wiring to the backup source, so factor that into the install.
Installation
Installation is a drop-in job on a ceiling already cut to size: connect the supply, push the housing into the cutout, and the clips hold it in place. The 3CCT switch and the control connections are accessible from below before the trim is seated. If the ceiling is new, cut the hole to the model’s cutout size and leave enough cavity depth for the housing.
Jaminan dan pensijilan
Warranty is 3 to 5 years depending on configuration. The fixture carries SAA, CE, and RoHS certifications.
Typical use cases
Open-plan offices use the low UGR to keep screens and desks glare-free. Schools and libraries use it for the same reason over study areas. Retail and boutiques use the CRI 90 option on merchandise. Hospitality spaces use the 3000K setting with Triac dimming for evening ambiance. Museums and galleries use the even 120° beam to wash walls and displays without hot spots.
