Power

Overview

Selux

Selux spe­ci­fies the power con­sump­tion for all LED lumi­na­ires inc­lu­ding all ope­ra­ting units as rated power.

Luminous flux

Overview

Selux

Selux spe­ci­fies the lumi­nous flux for all LED lumi­na­ires as rated lumi­nous flux. This cor­res­ponds to the total lumi­nous flux emit­ted by lumi­na­ires under normal ope­ra­ting con­di­ti­ons. The lumi­nous flux for each Selux LED lumi­na­ire type is measu­red sepa­ra­tely for each power level ava­ilable. This data is recor­ded as abso­lute light inten­sity dist­ri­bu­tion.

Light yield

Overview

Selux

To cal­cu­late the per­for­mance (per­for­mance capa­bi­lity), light yield is spe­ci­fied as the ratio bet­ween rated lumi­nous flux and rated power. For this the tole­rance spe­ci­fied in the cur­rent stan­dard is taken into acco­unt. Besi­des this, opti­mal light direc­tion of Selux LED optics atta­ins better ligh­ting results and lower scat­ter light per­cen­ta­ges than lumi­na­ires with simi­lar system light yields.

Lifetime

Overview

Selux

A: Deg­ra­da­tion
Deg­ra­da­tion is loss of lumi­nous flux over ope­ra­ting time. The life­time of LEDs depends on the cor­res­pon­ding per­mis­sible deg­ra­da­tion and is exp­res­sed as a per­cen­tage.
B: Abrupt Failure Value
Abrupt Failure Value (AFV) is the per­cen­tage of LED lights that fail comp­le­tely within a pre­di­ca­ted ave­rage rated life­time (e. g. due to an elect­ri­cal fault).

Loss of luminous flux

Overview

Selux

Selux cir­cuit boards with selec­ted LEDs work within an opti­mal tem­pe­ra­ture range due to coor­di­na­ted ther­mal mana­ge­ment, which keeps loss of lumi­nous flux as low as pos­sible over the LED’s ope­ra­ting time (deg­ra­da­tion).

Maintenance factor

Overview

Selux

Loss of lumi­nous flux over the ope­ra­ting time can be found in our datas­he­ets in the ligh­ting tech­no­logy sec­tion. The indi­vi­dual main­te­nance factor can be cal­cu­la­ted from this based on sche­du­led ope­ra­ting time.

Thermal management

Overview

Selux

With Selux Exte­rior core pro­ducts, use of moni­to­ring com­po­nents (NTC Nega­tive Tem­pe­ra­ture Coef­fi­ci­ent) on cir­cuit boards ensu­res the ope­ra­ting tem­pe­ra­ture never exce­eds the per­mis­sible ope­ra­ting tem­pe­ra­ture at the measu­ring point (Tc). In excep­ti­onal cases where ambi­ent tem­pe­ra­ture (Ta) inc­re­ases exces­si­vely, the power is redu­ced by the NTC ensu­ring the LED does not suffer any damage or age pre­ma­tu­rely.

Light colour

Overview

Selux

Selux LED lumi­na­ires are ava­ilable in narrow shades of light colo­urs. This ensu­res that the light colo­urs of all lumi­na­ires with the same or a simi­lar cor­re­la­tive colour tem­pe­ra­ture (CCT) are per­ce­ived as being iden­ti­cal. With Selux My White cir­cuit boards, the cus­to­mer can cont­rol the light colour. This can vary bet­ween warm white and day­light white.

Current supply

Overview

Selux

Besi­des the lumi­nous flux, the effi­ci­ency of an LED lumi­na­ire essen­ti­ally depends on the inten­sity of the ope­ra­ting cur­rent. As the cur­rent supply inc­re­ases, the abso­lute lumi­nous flux inc­re­ases too. Both effi­ci­ency and life­time will dec­re­ase howe­ver. At Selux, all LEDs are powe­red at a cur­rent level that is well below the per­mis­sible limit value for LEDs.

Light colour – lifetime

Overview

Selux

Selux quality stan­dards requ­ire the use of pre­mium quality LEDs and sus­ta­inable ther­mal mana­ge­ment. This enab­les con­sis­tent light colo­urs within very narrow tole­rance ranges.

Colour reproduction

Overview

Selux

Quality of colour rep­ro­duc­tion is exp­res­sed using the Color Ren­de­ring Index (CRI). Colour rep­ro­duc­tion of LEDs is better than with con­ven­ti­onal illu­mi­nants in most cases. Depen­ding on the app­li­ca­tion, Selux can supply vari­ous levels of colour rep­ro­duc­tion:

Examp­les:
Arc­hi­tec­tu­ral spot­ligh­ting: > 80
Road­way ligh­ting: > 70
Museum ligh­ting: > 90

Replacement

Overview

Selux

With Selux LED module trac­king the lumi­nous flux of rep­la­ce­ment modu­les can be adap­ted, ensu­ring the appe­arance and ligh­ting tech­no­logy cha­rac­te­ris­tics of the ove­rall system stay the same. For furt­her infor­ma­tion, see Selux war­ranty con­di­ti­ons for LED com­po­nents on our web­site.

Dimmability / light control

Overview

Selux

All LED lumi­na­ires are suitable for cont­rol via DALI and in some cases via DMX too, enab­ling maxi­mum system effi­ci­ency and cre­ating ver­sa­tile design opti­ons.

Visual comfort

Overview

Selux

Glare effect is rest­ric­ted and regu­la­ted in indi­vi­dual pro­ducts based on the rele­vant app­li­ca­tion areas (e. g. UGR < 19 for offi­ces or TI for street ligh­ting). Visual com­fort is one of our dec­la­red objec­ti­ves and, beside light quality and pro­duct quality, a dis­tin­gu­is­hing feature of all Selux lumi­na­ires.

Photobiological safety

Overview

Selux

When using Selux LED lumi­na­ires , pho­to­bi­olo­gi­cal hazards, in par­ti­cu­lar due to Blue Light Hazard, can be reli­ably prec­lu­ded. Selux Exte­rior LED lumi­na­ires are equ­ip­ped with opti­cally effi­ci­ent dif­fu­sers. These reduce radi­ation den­sity in all direc­ti­ons, ensu­ring it rema­ins below the per­mis­sible limit values at all times. Our lumi­na­ires can be clas­si­fied under the unrest­ric­ted group 0 (no pho­to­bi­olo­gi­cal hazard) accor­ding to IEC 62471:2006.

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