Guias técnicos

You need to replace a recessed 115mm cut out downlight whose ceiling hole is labelled about 115mm. The risk is treating “115mm” as a universal

Projetores de 3000K ou 4000K? Escolha pela aparência, pelos materiais e pela luz ambiente, não pelo brilho. Compare lúmenes, CRI e SDCM e teste amostras.

O que é um projetor de calha trifásica? Saiba como funciona uma calha de três circuitos, porque não exige alimentação trifásica, como funcionam os grupos e o controlo DALI e o que verificar.

Plan 2m LED track lighting step by step: kit contents, circuits, head layout, joining two 1m rails, cutting, centre power points, installation and upkeep.

Plan 3 circuit track lighting step by step: circuit groups, supply and switching, I/L/T/X connectors, orientation, feed points, LED inrush and a full BOM.

Compare 240V, 48V and 24V track lighting by power supply, current, voltage drop, controls, installation and cost, with a decision table for projects.

Track lighting with adjustable heads leaving bright spots and dark corners? Re-aim heads, check beam spread and overlap, and see when that is not enough.

What lights fit a 10mm magnetic track? See which module types exist, why 10mm alone does not guarantee a fit, and six checks to run before you order.

Three or four heads on a 1.5 m track light? Work out the head count from your lighting targets, beam coverage, spacing and the track’s rated capacity.

Choose smart LED lighting control for commercial projects: functions first, then wired or wireless, DALI, Zigbee, Casambi or WiFi, and what to specify.

How much can office LED lighting save? Use DOE retrofit ranges, then calculate kWh, cost savings and simple payback from your own wattage and hours.

Choosing an LED light factory in China? Check legal entity, product fit, quality system, compliance files, sample and batch consistency before ordering.