Everlight Electronics has expanded its high-performance JU series of chip-on-board (COB) LEDs to include 7, 10 and 15 W types in addition to the existing 4 W version. The parts are especially suited for directional applications that require a powerful single light source for effective illumination such as GU, MR and PAR retrofits, downlights and candelabras.
The JU series now consists of four JU1215 (15 x 12 x 1,6 mm) and one JU2024 (20 x 24 x 1,6 mm) type with power ranging from 4 to 15 W. All types provide an efficacy of 110 lm/W or more at 3000 K CCT, a CRI of >80 Ra and 25°C substrate temperature, and are available in versions ranging from ANSI bin 2700 K to 6500 K. The JU series also offers 3-step (McAdam) options for advanced utilisation.
JU COB LEDs are multi-chip solutions that are directly applied to the board without housing, for efficient thermal dissipation. Their ceramic substrate base allows for thermal resistances of below 2°C/W, with the largest wattage COB measuring around 0,8°C/W. Low thermal resistance and good heat dissipation ensure high reliability and increase the LEDs’ service life.
Each COB has unique features with carefully calculated chip configurations for optimal lumens versus cost and optically compact light emission surfaces (LES) for effective pairing with secondary optics.
Additional JU COB options such as colour choice, high voltages from 45 to 250 V for different regions and applications, and high CRI (>90 Ra) are available to meet specific needs. All JU COBs have completed LM80 lumen maintenance testing and are offered with a complete line of accessories such as standardised holders, reflectors and more.
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