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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