Development of two series of lighting LEDs which contribute to a reduction in environmental load Contributing to power saving of luminaire through improvement in luminous efficacy
［ Products ］
Main characteristics of CITILED Standard COB Series Version9
1. Luminous efficacy has been improved by a maximum of 7 to 8 % Preserving the product appearance of conventional series Available in color lineups
By not only pursuing light extraction efficiency and better heat dissipation but also by reviewing materials such as of the dice, we have succeeded in improving luminous efficiency by a maximum of 7 to 8 % while improving long-term reliability and maintaining the appearance of the conventional series and size of the luminous area. It is easy to replace conventional products with the new one as the new series is available in a color lineup according to color temperature and color rendering.
2.Both high-current drive and reduction of chromaticity variations (2SDCM※4) are achieved
We have raised the maximum rating of drive current (by 27%) while reducing chromaticity variations to the same level as the conventional model (Version8). As the amount of light obtained per package has increased, this will contribute to downsizing of luminaire and cost reduction.
Main characteristics of CITILED High Intensity COB Series Version4
１Available in a lineup of the industry’s smallest class (2.4mm in diameter of LES) for spotlights
Luminaires used for professional lighting in commercial establishments, such as in facilities, shops, hotels and restaurants, require precise light distribution control as well as high quality of design. The COB High Intensity Series, which has “narrow LES (light-emitting surface)” that pursues the goal of providing a point light source, enables customers to create optical designs such as lenses easily, and improve quality of design by downsizing the device. This time, LES size of 3.5㎜in diameter (CLU7S3) and 4.2mm in diameter (CLU7R3) are added to lineups newly to expand the lineup of narrow LES products.
２．2. Luminous efficacy has been improved by a maximum of 8 % (compared with Version 3)
By not only pursuing light extraction efficiency and better heat dissipation but also by reviewing materials such as in the dice, we have succeeded in improving luminous efficiency by a maximum of 8 %. Emitting bright light with reduced power contributes to energy-saving of luminaires.
*1 COB: stands for Chip on Board and is a structure where more than one LED die is mounted on a board. It realizes a bright LED with high power.
*2 Compared with typical product CLU02x-1204xx with 3000K, Ra90, Tc=25℃ and IF=90mA/Die
*3 Compared to our company's products by in-house test
*4 SDMC is the acronym for Standard Deviation Color Matching. It is an indicator of chromaticity variation. The smaller the figure, the less the variation
*5 Comparison when light is emitted under the same conditions (2700K, Ra90,IF=350mA and Tj＝85℃)
New product Version4： CLU703-1202E1-273H5X3 108 (lm/W)
Conventional product Version3： CLU702-1202C9-273H5R2 100 (lm/W)
“CITILED The Light Engine” is the brand name for lighting LEDs of CITIZEN ELECTRONICS CO., LTD. “ＣＩＴＩＬＥＤ” is a registered trademark of CITIZEN WATCH CO. LTD.
* Information provided on this news release was accurate at the time of announcement. Design of the product, date of sale, specifications, etc. may change.
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