Powerelectronics 693 Low Bay 0

LED light engines allow control of color temperature, beam angle

May 3, 2012
Recently developed MarulaLED CoolTube technology is a product line of light engines, designed for integration into OEM luminaires.

Recently developed MarulaLED CoolTube technology is a product line of light engines, designed for integration into OEM luminaires. The new light engines offer users the ability to control color temperature and beam angle by adjusting the current supplied to specific LEDs. Control of heat, however, is what makes the design literally “cool,” according to company sources. CoolTube technology allows the end user to safely position the luminaire to the most useable position, while eliminating bulky heat sinks and metal-clad PCBs. This makes the product suitable for use in restaurants, hotels, workstations, recreational vehicles, and wherever safe contact with the luminaire is needed.

Beam control in MarulaLED’s Low Bay Module is optimized by balancing current flow to LEDs mated with LEDiL’s LISA2-M (medium) and LISA2-WW (very wide) secondary optics. MarulaLED’s LE32 module, on the other hand, promotes control of color temperature by the adjustment of power to half of the LEDs. The 16 inner LEDs used in the LE32 module are a warmer color temperature than the remaining LEDs. This module uses 32 of LEDiL’s LISA2-M medium beam TIR lens.

The LISA2 series of lenses, measuring less than 10 mm in diameter and less than 7 mm high, achieves greater than 90% light transmission efficiency through its advanced design and material. The TIR lens is engineered to exacting tolerances and molded from high-quality acrylic (PMMA), which offers outstanding transmission efficiency and is virtually impervious to UV radiation. Each lens is mounted in a molded polycarbonate (PC) housing designed for alignment to a specific LED, providing precise location of the lens at the ideal focal point for each qualified brand or style of LED. While the lens housing is rated for use at 115⁰ C, the cool operation of the light engine means that the housing, which attaches to the PCB by means of locating pins or optional mounting clips, will maintain its physical integrity over the usable life of the luminaire.

Color-tuning control with high CRI, combined with beam control, thermal management, and the use of tiny, yet precise, secondary optics enhance operation. LEDiL also offers a wide selection of standard lenses and reflectors, including a comprehensive line of asymmetric lenses and reflectors. Semi-custom arrays and custom solutions are also available.

For more information, contact LEDil's U.S. marketing and distribution manager, Bob Derringer, at [email protected] or (908) 216-2377, or visit LEDil's website.

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