Office desks beneath angular suspended linear lighting

Lumi Indoor

SQUARE

Application inspiration · not a project reference

SQUARE is part of Lumi Indoor. Coordinate the selected article’s dimensions, installation details and configuration with the project specification; these details can vary between models in the same family.

Panel Light

SQUARE

11 product lines·11 total variants·luminaire·ceiling recessed

SQUARE is a panel light family within the LUMIBRIGHT Lumi Indoor collection. Explore 11 models, including LB5388, LBP5301, LBP5302, with model-specific specifications and configuration choices. LB5388 specifications include power: 40W; colour temperature: 3000K/4000K/5000K/6000K/6500K; IP rating: IP44; dimensions: 597x597x30mm. Compare the SQUARE range by power, colour temperature, protection rating and dimensions using the technical table below. Open an individual model to explore its available finishes and optics, select a listed order code and prepare a specification sheet where configuration data is available. Keep the chosen model reference with your project schedule so the lighting and installation teams can coordinate the same selection. For additional drawings, photometry or project-specific requirements, contact the LUMIBRIGHT specification team with your model code.

SQUARE LUMIBRIGHT product family

Model specifications

LB5388Wattage40WCCT3000K/4000K/5000K/6000K/6500KIPIP44Dimensions597x597x30mmCut-outNot published
LBP5301Wattage32WCCT3000K/4000K/6500KIPIP40Dimensions595x595x8mmCut-outNot published
LBP5302Wattage40WCCT3000K/4000K/6500KIPIP40Dimensions595x595x8mmCut-outNot published
LBP5303Wattage40WCCT3000K/4000K/6500KIPIP40Dimensions595x595x8mmCut-outNot published
LBP5304Wattage40WCCT3000K/4000K/6500KIPIP40Dimensions595x595x8mmCut-outNot published
LBP5305Wattage40WCCT3000K/4000K/6500KIPIP40Dimensions595x595x8mmCut-outNot published
LBT5304Wattage29WCCT3000K/4000K/6500KIPIP44Dimensions597x597x45mmCut-outNot published
LBT5305Wattage36WCCT3000KIPIP40Dimensions597x597x09mmCut-outNot published
LBT5306Wattage36WCCT6000KIPIP40Dimensions595x595x10mmCut-outNot published
LBT5307Wattage25WCCT3000K/4000K/6500KIPIP44Dimensions400x400x30mmCut-outNot published
LBT5311Wattage48WCCT6000KIPIP44DimensionsL597xW597xH35mmCut-outNot published

Technical Data

Full Specification

Dimensions597x597x30mm · 595x595x8mm · 597x597x45mm · 597x597x09mm +3 more
Cut-outNot published — technical review required
Power40W · 32W · 29W · 36W +2 more
Lumen output3840lm · 3600lm · 4000lm · 4400lm +2 more
Efficacy100-110 lm/W · 80-100lm/W
Optics / beam angle120° · 110°
Colour temperature3000K · 4000K · 5000K · 6000K +3 more
CRI Ra80+ · >80
R9Not published — technical review required
TM-30 Rf / RgNot published — technical review required
UGRNot published — technical review required
IP ratingIP44 · IP40
IK ratingNot published — technical review required
Ambient temperature (Ta)Not published — technical review required
DriverNot published — technical review required
Dimming / controlNot published — technical review required
Input voltage100-240VAC · 220-240VAC
Light sourceNot published — technical review required
MaterialAluminium+PC · Aluminium · Die-cast Aluminium · Metal alloy
FinishWhite · WWH
Mounting / installationNot published — technical review required
Net weightNot published — technical review required
CertificationNot published — technical review required
LifetimeNot published — technical review required
WarrantyNot published — technical review required
Lead timeNot published — technical review required

11 of 26 specification rows published from the 2026 master data. Values vary by model; missing test data is not estimated. Select an exact model for approval.

How to compare photometry, room-based glare calculation, mounting and controls →

Configuration

Select Specification

Power
Beam Angle
CCT
IP Rating

Select attributes to narrow down variants

Dimensions

Technical Drawing

Drawing and sizes shown for model LB5388. This family has 11 models with different dimensions — select a model above, or open its row in the variant table, for its own drawing.

Size — model LB5388

597x597x30mm

Specifications

At a Glance

25–48W

Power Range

2 options

Beam: 110°, 120°

5 CCT

3000K, 4000K, 5000K, 6000K, 6500K

CRI 80

Colour Rendering

IP40 / IP44

Protection Rating

7 sizes

400x400x30mm, 595x595x10mm, 595x595x8mm, 597x597x09mm, 597x597x30mm, 597x597x45mm, L597xW597xH35mm