Everlight introduced its CHI3030 27V/29W 30x30mm LED series, a very compact solution with LED chips mounted behind concentric layers of phosphors offering different color temperatures of white. Everlight claims to be the world's first color-temperature tunable LEDs in a simple chip on board (COB) package.
This new series of LEDs offer tunable color warmth without the use of multiple LEDs of different color. It is available from 2,580-5,700K for the KH Warm White series to a tunable range of 4,745-7,050K for the KT Cool-White series, with typical luminous flux of 2,760 lm for a 2,700K warm white to 2,990 lm for a 5,700K cool white. It offers also smaller series down to 9W.
Here is the link for the news release.