Sparks Electrical News October 2016

LIGHTING

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ULTRAFLAT DALI LED DRIVERS FOR ULTRAFLAT LUMINAIRES T he new 35 and 75 W OTi DALI LED drivers stand out due to their ultra-flat design – just 11 mm – and retain the excellent thermal flat standing luminaires, suspended luminaires as well as surface-mounted ceiling fixtures in office, hospitality and healthcare applications, says Hall, adding that design-in examples and first pilot systems are available and that the ultra-flat light/ presence sensors will be available soon.

• Very high efficiency and reliability. • Protection of the system thanks to thermal man- agement and smart control. • Higher quality of light due to low output ripple current. Versatile scope of application due to OSRAM DALI technology • Easy to use in corridors and restrooms because of three-level corridor function. • Touch dim application that is easy to control via pushbutton or sensor. • Energy efficient touch dim operation due to auto-

Light is Flexib national sales and marketing manager, Shawn Godfrey. “But, at the end of 2015, RWP Engineer- ing Consultants presented LED Lighting with a task that ensured we put our best foot forward.” “Aftermore thannine large scale shoppingcentres, one would expect this to be just another request, but there were some interesting challenges,” says Godfrey. “The requirement set out was to gain a set lux level while reducing the direct lighting proportion to almost zero. This poses amassive challengewhen reflecting light off a ceiling as the proportion of lost light is very high. However, through clever product specification and engineering, a solution was found that matched the client’s brief,” he explains. matic switch-off at sufficient residual light. • Suitable for emergency Installations (comply with EN 60598-2-22 and IEC 61347-2-13, Appendix J) due to dc detection (0 Hz, pulsating dc), on/off switchable. • Feedback of power consumption and operating hours (fit for smart grid). • Suitable for buildings according to EPBD/ BREEAM/LEED due to automatic constant lu- men output setting. Areas of application • Ideal for use in applications and luminaires with slim design. • Installation in emergency lighting systems according to IEC 61347-2-13, Appendix J. • Suitable for use in luminaires with flexible current setting (DALI, CLO, LEDset). • Suitable for luminaires of protection Class I. Product features • Supply voltage: 220...240 V. • Line frequency: 0 Hz, 50...60 Hz. • Line voltage: 198...264 V. • Safety according to EN 61347-1, 61347-2-3, 61347-2-13, 62384. • RI suppression according to EN 55015:2007+A1:2007/CDN. • Line harmonics according to EN 61000-3-2. • Immunity according to EN 61547. • Lifetime: up to 100 000 h (temperature at Tc = 65 °C, max. 10% failure rate). ‘CLEVER’ PRODUCT SPECIFICATION AT VAAL MALL C ove lighting in shopping centres can, at the best of times, be an incredible challenge, says Cape Town-based LED Lighting’s • Floor-standing, pendant and surface- mounted luminaires, and LED panels. Enquiries: +27 010 221 4000

characteristics of the 21 mm high OTi DALI driv- ers says OSRAM’s Eric Hall. “They can be dimmed down to 1% of their luminous intensity, comply with the upcoming DALI Ed.2 standard and can be pro- grammed via the DALI interface or even wirelessly via an NFC interface,” he explains. In addition to their large output current range, they provide an efficiency of > 92%, low standby <0.25 W, a ser- vice life of up to 100 000 h/Tc-10 K, and bear the EL mark. Typical applications include ultra-

Product benefits • Ultra-flat housing (11 mm height) for innovative luminaire designs and applications. • Easy and fast wireless luminaire programming. • Versatile DALI window driver for up to 75 W out- put with flexible characteristic.

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Light is comfort ULTRAFLAT DALI LED drivers for ultraflat luminaires

Lighting objectives “The main objective was to drastically increase lighting levels throughout the mall while reducing the required maintenance and overall wattage of the installation – and this all had to be achieved whilst still utilising the same lighting positions of the original lighting design. Another important cli- ent request was to have an even wash over the ceilings with no dark patches between installed fittings,” explains Godfrey. Lighting solutions He says that originally, a FRT5 linear plug-and- play rigid cove solution was specified. “While this was the correct product, adjustments needed to be made in order to meet the brief. The problem brought forward to the engineering team was that the standard strip wattage and lumen package was not achieving the average lux required by the customer,” he says, adding that, “through careful high lumen LED selection, the FRT5 light engines were produced specifically for the Vaal Mall shop- ping centre.” Enquiries: +27 21 510 0028

The new, just 11 mm flat OTi DALI LED drivers (35 W and 75 W) stand out due to their ultra-flat design while still retaining the excellent thermal characteristics which you already know from the 21 mm high OTi DALI drivers.

Product benefits Ultra-flat housing (11 mm height) for innovative luminaire designs and applications Easy and fast wireless luminaire programming Versatile DALI window driver for up to 75 W output with flexible characteristic Very high efficiency and reliability Protection of the system thanks to thermal management and Smart Control Higher quality of light thanks to low output ripple current

Light is OSRAM

SPARKS ELECTRICAL NEWS

OCTOBER 2016