More details from Litepanels (http://www.litepanels.com):
VAN NUYS, CA – Litepanels’ Inca 6 and Inca 4 mirror the capabilities of their daylight counterparts in the Sola Series of Fresnels, but will output tungsten-balance light that can be integrated with light from legacy tungsten fixtures. This now allows studios with existing tungsten fixtures to begin realizing the cost-saving benefits of LED lighting today without changing out their whole lighting installation.
Like the Sola series, new Inca Fresnel fixtures feature a lightweight form factor, one-third that of traditional Fresnels. They provide the controllability and light-shaping, single shadow properties inherent in a Fresnel light, focusing from 70 to 10 degrees. Like all Litepanels fixtures, the Inca 4 and Inca 6 can be dimmed from 100 percent to zero with no noticeable shift in color temperature. Both focus and dimming can be controlled manually with dials on the fixture, or via remote DMX.