Zylight IS3: 100W LED panel, 8500 lumens, TLCI 97. V-Mount battery (90 min runtime), variable dimming via DMX or app control.
Technical Details
The IS3 operates with a maximum power consumption of 100 watts and produces 8500 lumens of light output. Color accuracy reaches TLCI values of 97. The unit offers stepless dimming from 0-100% via DMX512, manual controls, or the ZyLink app. The internal V-Mount battery allows for 90 minutes of continuous operation at full power, with the option of mains operation via an external 48V power supply. The panel features a built-in diffuser and connectors for barndoors and softboxes with a Bowens mount.
History & Development
Zylight LLC introduced the IS3 in 2014 as the successor to the IS series, after LED technology had established itself for professional film productions. The unit was developed in collaboration with DoP Shane Hurlbut, who was looking for a lightweight, mobile light for run-and-gun shooting. In 2016, the IS3c version followed with expanded color mixing functions (RGB+WW), and in 2019, the IS3x with 40% higher light output due to a new LED generation.
Practical Use in Film
The IS3 quickly established itself with documentary filmmakers and as interview lighting for talk shows. DoP Rachel Morrison used it for fill light situations in "Mudbound" (2017) because it could be adjusted between daylight (5600K) and artificial light (3200K) without crew effort. On "The Crown," it served as a mobile fill light for spontaneous dialogue scenes in historical buildings where heavy equipment was problematic. Its silent operation makes it ideal for sound recording, and the low heat output is gentle on actors and makeup.
Comparison & Alternatives
Direct competitors include the Litepanels Astra 6X (6000 lumens, but without battery) and the Arri SkyPanel S30-C (three times the light output, but weighs 7 kg). The IS3 is positioned between small on-camera panels and large studio lights. Modern alternatives like the Aputure Nova P300c offer higher light output but lack the portability. For pure daylight applications, the more affordable Astra 1x1 remains sufficient, and for color effects, RGBW panels like the Quasar Q-Lion are superior.