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LED Street Lighting for Dark Sky Protected Areas

IGNIALIGHT. LED Street Lighting for Dark Sky Protected Areas. September 2013. Who are we?. Introduction. Spanish Multinational Company. Sales Division. Lighting Department since 1999. www.ignialight.com. Industrial Division. PC-Amber LED: Real Alternative to HPS.

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LED Street Lighting for Dark Sky Protected Areas

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  1. IGNIALIGHT LED Street Lighting for Dark Sky Protected Areas September 2013

  2. Who are we?

  3. Introduction Spanish Multinational Company Sales Division Lighting Department since 1999 www.ignialight.com Industrial Division

  4. PC-Amber LED: Real Alternative to HPS LED Street Lighting: A Reality • After overcoming initial resistances today there is no street lighting project where the LED is not taken into account. • So many vantages can be achieved with LED technology • High efficiency (lm/W) • Low Power Consumption • High usage of the light • High Lifespan • Good Lumen Maintenance ratio – L70 50.000h • But with LEDs not all is valid: • Renowned Manufacturer: ¡Warranties! • Control over Binning • Optical System (lenses, reflectors,…) • Thermal Dissipation • Power and Control Electronics • Once LEDs are accepted for Street Lighting… What kind of LED should we use in each case? • ¿Single DIE / Multi DIE / COB? • ¿Low Power / Medium Power / High Power LED? • ¿CRI? • ¿CCT?

  5. PC-Amber LED: Real Alternative to HPS WHICH LED SHOULD BE USED IN EACH CASE? • CCT typical spectrum in LED Street Lighting. • The choice between them is usually purely aesthetic or economic • Old Town Centers: Warm White 3000K • Residential areas and roads: Neutral White 4000-4500K • Asian luminaries manufacturers typically use Cold White 5000-6000K • What is common in theses 3 CCT? The peak on 440nm • White LEDs are made from Royal Blue LED die + Phosphor layer • Are there negative effects of emission peak at 440nm?

  6. PC-Amber LED: Real Alternative to HPS • Light Pollution affectation • Rayleigh Law, light emitted at short wavelengths (350-450nm) • is more dispersed into the atmosphere than the light emitted • at longer wavelengths (550-650nm). • The bluer is the light, the higher is the light pollution. • The reddish is the light, the lower is the light pollution. NEGATIVE EFFECTS OF EMISSION PEAK AT 440NM • Nocturnal Wildlifeaffectation • The vast majority of wildlife and insects are adapted to live in the nocturnal world. • In the darkness they hide from predators, feed, hunt and breed. • These species are more sensitive to blue light radiation, while red light is almost invisible to them and do not disturb their life cycles. thierrycohen.com

  7. PC-Amber LED: Real Alternative to HPS WHICH LED SHOULD BE USED IN EACH CASE? • CCT typical spectrum in LED Street Lighting.

  8. PC-Amber LED: Real Alternative to HPS WHICH LED SHOULD BE USED IN EACH CASE? • Phosphor Converted Amber • PC-Amber LED • Made from Royal Blue die + Phosphor Layer • 440nm Emission peak disappears • Emissions below 500nm are almost null • Maintains high efficacy level: 90-100lm/W • Color Rendering Index (CRI) = 40 • High Pressure Sodium HPS • Medium level emission peaks at 450nm, 495nm, 780nm…. • There is emission below 500nm • High efficacy level: 100-120lm/W • Color Rendering Index (CRI) = 25

  9. PC-Amber LED: Real Alternative to HPS WHICH LED SHOULD BE USED IN EACH CASE? • Monochromatic Amber LED • Monochromatic Amber LED • Made from AlInGaP semiconductor material combination • Monochromatic spectrum with emission peak at 590nm • No emission below 500nm • Efficacy level: 60lm/W • Color Rendering Index (CRI) = 0

  10. Analysis Performed • Empirical tests of wildlife and insects attraction using different lighting technologies: • Mercury Vapor Luminaries • High Pressure Sodium Luminaries • Ignialight PC-Amber LED Luminaries • Results: • PC-Amber vs. Mercury Vapor : 70% insects attraction reduction • PC-Amber vs. HPS : 30% insects attraction reduction Mr. Alfons Dolsa – Catalonian Butterfly Museum • PC-Amber IGNIALIGHT luminaries reduce down the affectation to the night environment

  11. Analysis Performed Dr. Antonio Madrid – Murcia University – Chronobiology Lab • Measure to determine the effect of PC-Amber lighting to human circadian cycles

  12. Analysis Performed Dr. Antonio Madrid – Murcia University – Chronobiology Lab • Results: • IGNIALIGHT PC-AmberLuminarieshave no adverse effect on circadian rhythms

  13. Analysis Performed IREC – Catalonia Institute for Energy Research • Measures to determine the classification of the luminaries according the EN62471 photobiological safety norm. • Results: • IGNIALIGHT PC-Amber luminaries are risk exempt in all the categories according to EN62471

  14. Analysis Performed IAC – Instituto de Astrofísica de Canarias • Certificate of luminaries and lamps with LED light equivalent to HPS • Results: • IGNIALIGHT PC-Amber luminaries certified by IAC

  15. Success Cases Sant Cugat - Street lighting • Place: Sant Cugat • Luminaries : PLED 30W Double Level self-regulation • Previous lighting system: HPS 100 W (+15% ballast.) • Efficiency: 74% less power consumption

  16. Success Cases Santa Pau - La Garrotxa Volcanic Zone Natural Park • Place: Santa Pau • Luminaries : DLED 130W • Previous lighting system : HPS 250 W (+15% ballast.) • Efficiency: 55% less power consumption

  17. Success Cases Serinyà- Street Lighting • Place: Serinyà • Luminaries : MLED 75W • Previous lighting system : HPS 100 W (+15% ballast.) • Efficiency: 35% less power consumption

  18. Success Cases Banyoles - Banyoles Lake Natural Park • Place: Banyoles • Luminaries : YLED 40W • Previous lighting system : New installation • Efficiency: 50% less power consumption compared with HPS 70W + ballast..

  19. Thanks for your attention

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