Cree adds dim-to-warm option in LMH2 LED module family

Cree has announced what the company calls Sunset Dimming in its LMH2 LED module family. The new module line dims from a 2700K CCT at full brightness to 1800K at 1% of full range, and maintains a 90 CRI over the bulk of that range. The new dimming capability provides luminaire makers with even more options that they can offer using the same basic fixture design.

The LMH2 line of products has been among Cree's lighting products that feature True White technology implying a CRI above 90. In the case of the modules, the TrueWhite implementation includes a mix of white LEDs that are above the black-body curve along with red LEDs. That mix provides both good efficacy and the ability to offer a warm CCT and high CRI.

The Sunset Dimming technology leverages the LED mix to increase the percentage of red energy relative to white energy as the light level drops. Cree implements that capability in electronics integrated within the module separately from the external constant-current driver required for the LMH2. Luminaire makers can buy drivers from Cree or from third-party driver manufacturers on Cree's approved vendor list.