What are the benefits of white light technology? Lighting Consultant Miles Pinninger and GE Global Outdoor Leader Diederik de Stoppelaar talk about innovative outdoor lighting solutions at Light + Building 2012.
Electronic Light Sources - solid stateBetter at cool colours (4000 – 6000K) good for Mesopic vision Emit less heat but very temperature – sensitiveFar superior optical performance – integral optics etcSmoothly and instantaneously dimmable - ideal for DPM applicationsDimming range (0 – 100%) far better than HIDIncredibly long life ( up to 80,000 hrs to L85)Optimum flux utilisation offers big energy savingsHuge maintenance benefits leads to lowest TCO despite higher capex
GE’s solutions have been designed to integrate and harmonise with the aesthetics of a modern office environment and provide soft, even illumination of all surfaces.Short discussion surrounding each bullet point… 5 mins on this slide only and then invite to move through the stand
Innovative solutions for outdoor lighting: White light
“White light – just achoice of color or more?”Miles PinnigerIndependent Lighting ConsultantDiederik de StoppelaarGlobal Outdoor LeaderGE Lighting18th April 10:00 AM & 3:00 PMGE Stand 1 Vertical Pages 2012 Q1
The case for white light Horrible colour appearance & no colour rendering Poor lumen maintenance ( SOX ) High control gear losses “ Useless photometrically “ Outdated by white light developments Also, poor visual performance under this light colour2
Improvements in white light technology: Efficacy - more Lumens for less Watts Better Lumen maintenance Longer life Electronic control gear More stable white colour3
Three Key Points...1. Quality not Quantity2. Spectral Distribution critical to Vision3. Optical system efficiency with LEDs far higher than with HID
And actually a fourth point:(not strictly to do with white light)4. LEDs are beautifully controllable - both optically - and with dimming
Mesopic Vision Sometimes known as „Twilight Vision‟, occurs in a narrow illuminance band corresponding to Eh = 5–30 Lux. Coincides closely with BS5489 / EN13201 urban/residential. Vision enhanced under blue-rich white light with good colour-rendering light sources (ie. better than CRI 60)4
SON vs Metal Halide ILLUMINANCE 60% LESS Thanks to Venture LightingCostco Liverpool HPS (2200K CRI 20) White Metal Halide (5000K 90 CRI)600 W SON 365 Watt, 39% energy reduction
Facial Recognition White light significantly better for facial recognition than yellow Sodium light About 60% less white light needed Source: Raynham & Sakvikronning UCL London
Facial recognition Source: Raynham & Saksvikronning UCL London
Conclusions:1. White light saves energy, lower lamp powercan be used.2. Better facial recognition (therefore security) with white light & requires 60% less3. Mesopic conditions (5 – 30 Lux): High (> 60%) CRI lamps give optimum vision for lowest energy.
Exterior light fixtures of the future“ Fit & Forget” 10 yrs no-servicing solutions (CFL& LEDs) Smaller luminaires Super-efficient reflectors Self – cleaning optics Better luminaire sealing – protect electronics & LEDs Minimum upward light (future legislation) Simple electronic lighting control systems (energy saving) More reliable electronics(currently a weak link) Recyclable luminaires – return to factory for LED change after 10yrs, with 40-year luminaire life
CMH StreetWise ConversionBudapest ElizabethBridgeThanks to GE Lighting
White Light LEDsWhite LEDs 8400 Lm 75 CRíI HPS 21000 Lm 22 CRI Better visibility with 60% less light!
White Light Architectural Lighting (image of LED scheme) GE‟s 2012 Olympics scheme for Tower Bridge London
Dynamic Power Management(DPM)• Ambient lighting level “simmers“ at low level (i.e.10-20%)• Sensors trigger higher levels when required• LEDs perfect for this application• Energy savings up to 85% compared w static operation• Less thermal stress on system gives even longer LED life• Application now moving to radar sensors for road lighting• New sensor technology will widen applications
Radar-operated Road Lighting Thanks to Comlight Norway
DPM in action: Shell worldwideforecourts Thanks to Nexus Malaysia ( Thanks to Nexus Malaysia )
GE... For Outdoor Your partner for white light, upgrade alternatives tailored to budgets Unique light source efficiency & optimized system efficacy Effective light control, even light distribution Technical performance Demonstrate sustainability 20
See our stand for the white lightsolution that fits You best