Quasar Science LED panel featuring dual independent arrays (warm white 2000K–3200K, cool white 4500K–6000K) for seamless color temperature adjustment without filters.
Technical Details
The system is based on two parallel LED strips, each with 288 individual diodes per square foot. The lower strip contains warm white LEDs (2000K-3200K), and the upper strip contains cool white LEDs (4500K-6000K). Power consumption is a maximum of 200 watts at full intensity of both arrays. The panel achieves a CRI value of 95+ and a TLCI value of 98. Available sizes range from 1x1 foot to 4x4 feet, with larger variants being assembled from modular 2x1 foot units. Control is via DMX512 or the proprietary QuasarLink app via Bluetooth.
History & Development
Quasar Science introduced the Double Rainbow System in 2018 as an evolution of their Q-LED series. The initial concept came from DoP Shane Hurlbut, who was looking for more flexible color temperature solutions for "The Ruins" (2008). In 2019, the Rainbow series followed with RGBX functionality, and in 2021, the current generation with improved color rendering and reduced flicker at 120fps footage. The integration of Bluetooth control came in 2020 in response to COVID-19 related social distancing rules on set.
Practical Use in Film
Christopher Nolan utilized Quasar Double Rainbow panels for practical lighting effects in "Tenet" (2020), particularly for the time reversal sequences. The stepless color temperature adjustment allowed for seamless transitions between daylight and night light without filter changes. Typical applications include car rigs, where the slim profile (2.5 cm depth) is critical, as well as a book light behind diffusion for portraits. The panels are particularly suitable for mixed lighting situations where existing daylight (5600K) needs to be balanced with artificial light (3200K).
Comparison & Alternatives
Compared to conventional bi-color LEDs like the Arri SkyPanel, the Double Rainbow System offers more precise control over light distribution and color mixing through its physically separated LED arrays. The ARRI Orbiter with a bi-color module achieves higher light output but is significantly heavier and more expensive. For pure color effects, RGBWW systems like the Astera Titan Tube surpass its capabilities, while for maximum light output, traditional HMI lights with color gels remain superior. The Double Rainbow System positions itself in the niche between flexibility and light output.