Lumulabs is showing off its new Lumu Power light and color temperature meter add-on for smartphones that was successfully funded through a Kickstarter campaign earlier this year. Attached to an iPhone, the Lumu Power can measure ambient light and flash output, as well as color temperature. It uses two sensors, one on each side of the half-dome design. A photodiode with CIE spectral luminous efficiency measures the light levels and a True Color sensor, which is compliant with the CIE 1931/DIN 5033 color standard, analyzes the color temperature. 

The electronics are protected by a stainless steel housing and the device attaches to your Apple device via the Lighting connector. An Android version that uses a USB Type-C port is planned for next year.

The diffusers are made from polycarbonate lexan, and like the original Lumu, the Lumu Power is controlled via a dedicated app. The latter is still in development but Lumulabs says new functions are added almost on a daily basis. Color temperature, illuminance flash output curve, flash duration and flash versus ambient light ratio are some of the functions that have already been implemented. You can pre-order now on the Lumu website for $229. Shipping is planned to start by the end of the month.