Con­trol gear for LED re­ces­sed lu­mi­n­ai­res
For op­ti­mal pro­duct per­for­mance, it makes sense to pro­vi­de LED re­ces­sed lu­mi­n­ai­res that in­clu­de con­trol gear pre­cise­ly tailo­red to the lu­mi­n­ai­re. ERCO´s LED re­ces­sed lu­mi­n­ai­res are usual­ly avail­able in three ver­si­ons: as DA­LI-con­trol­led Light Cli­ents, with con­trol gear dimma­ble through trai­ling edge tech­no­lo­gy, or with swit­cha­ble con­trol gear.

Dim­ming on the spot­light
ERCO´s LED spot­lights can be dim­med in va­rious ways to en­su­re ef­fi­ci­ent vi­su­al com­fort. The ver­si­ons with elec­tro­nic con­trol gear de­ve­l­o­ped by ERCO have an in­te­gra­ted po­ten­tio­me­ter to ad­just the lu­mi­nous flux pre­cise­ly and in­di­vi­dual­ly.

One of the key fea­tures of ERCO´s Light Cli­ents, i.e. DA­LI-com­pa­ti­ble lu­mi­n­ai­res, is their fac­to­ry-en­coded DALI con­trol gear. It enables the fully au­to­ma­tic re­co­gni­ti­on of all Light Cli­ents in­stal­led in a Light Sys­tem DALI in­stal­la­ti­on to pro­vi­de real plug and play con­nec­tivi­ty. This ad­van­ta­ge comes in use­ful par­ti­cu­lar­ly for va­rychro­me RGBW lu­mi­n­ai­res: The ma­nu­al as­si­gn­ment of four co­lour chan­nels to DALI ad­dres­ses is no lon­ger ne­cessa­ry, as the va­rychro­me RGBW LED con­trol gear com­ply with the stan­dar­di­sed DALI type and the­re­fo­re only re­qui­re one DALI ad­dress in spite of ha­ving four con­trol chan­nels. ERCO´s DALI con­trol gear is en­coded with an ar­ti­cle and se­ri­al num­ber along with other cha­rac­te­ris­tics of the lu­mi­n­ai­re. The Light Sys­tem DALI in­stal­la­ti­on re­co­gni­s­es the code, which is dis­play­ed in the Light Stu­dio soft­ware to­ge­ther with the ap­pro­pria­te con­trol ele­ments: Op­tio­nal­ly, a co­lour cir­cle (which will be fa­mi­li­ar to users of pre­vious RGB va­rychro­me lu­mi­n­ai­res) or a sli­der con­trol to re­gu­la­te the co­lour of white along the Plancki­an locus from cool to warm. En­co­ding ERCO´s DALI con­trol gear the­re­fo­re is the key to an ef­fi­ci­ent in­stal­la­ti­on of light­ing sys­tems with RGBW LED tech­no­lo­gy as well as their safe com­mis­sio­ning and user-fri­end­ly ope­ra­ti­on.

Co­ding for grea­ter user com­fort
The Light Cli­ents are en­coded with a uni­que code in the DALI con­trol gear. When power­ing up the sys­tem, the Light Sys­tem DALI au­to­ma­ti­cal­ly re­co­gni­s­es the lu­mi­n­ai­re type and pro­vi­des the re­le­vant in­for­ma­ti­on and func­tions.

En­co­ding and che­cking
In ad­di­ti­on to the ar­ti­cle in­for­ma­ti­on, the soft­ware also wri­tes the in­di­vi­du­al com­pen­sa­ti­on fac­tors into the re­spec­tive con­trol gear as per the mea­su­re­ments for co­lour com­pen­sa­ti­on. This is an im­portant as­pect for achie­ving per­fect light­ing qua­li­ty with RGBW LED lu­mi­n­ai­res.

Due to the ma­nu­fac­tu­ring pro­cess, LEDs vary in terms of their lu­mi­nous flux and do­mi­nant wa­ve­length. Even with ERCO´s strin­gent spe­ci­fi­ca­ti­ons for the selec­tion by bin­ning and con­sis­tent DALI con­trol va­lues, it is pos­si­ble that the light co­lours pro­du­ced by RGB co­lour mi­xing can de­via­te vi­si­bly from one lu­mi­n­ai­re to the next. To en­su­re co­lour con­stan­cy, each co­lour com­pen­sa­ted ERCO lu­mi­n­ai­re is in­di­vi­dual­ly mea­su­red and ad­jus­ted in the fac­to­ry. Spe­cial soft­ware cal­cu­la­tes the com­pen­sa­ti­on fac­tors which are per­man­ent­ly stored in the con­trol gear. The user is the­re­fo­re pro­vi­ded with light­ing tools that al­ways re­pro­du­ce ex­act­ly the same co­lour of light.

The human eye is ca­pa­ble of no­ti­cing even the sligh­test de­via­ti­ons in hue.

The ad­van­ta­ge of co­lour com­pen­sa­ti­on with va­rychro­me lu­mi­n­ai­res is the­re­fo­re par­ti­cu­lar­ly use­ful in ap­p­li­ca­ti­ons re­qui­ring high con­sis­ten­cy, such as co­lou­red wall­wa­shing.