Expanding the Aputure tunable white lighting lineup, the compact STORM 400x LED Monolight is a point-source workhorse, matching a powerful full-spectrum chipset with advanced dimming, professional color accuracy, a widely adaptable Bowens mount, and robust, IP65 construction for high-end set work under any circumstance.

Groundbreaking proprietary LED chipset

Built upon the same innovative foundation as the STORM 1200x and STORM XT52, the STORM 400x features Aputure’s proprietary BLAIR LED chipset—an advanced five-diode design that incorporates Blue, Lime, Amber, Indigo, and Red (BLAIR) emitters. This cutting-edge chipset enables more efficient spectral blending and unparalleled white light accuracy.

400W tunable-white compact point source fixture

With a powerful 400W output and compact profile, the STORM 400x is the ideal tool for users seeking versatile, color-accurate lighting solutions that can adapt to a wide range of shooting environments.

CCT range of 2,500K-10,000K

Offering a broad CCT range of 2,500K to 10,000K and full ±G green-magenta tint control across the complete ASC MITC range, the STORM 400x gives users fine-tuned white point adjustment to precisely match ambient and practical sources. This level of control ensures consistent visual continuity across every scene and setup.

Advanced diode color mixing

Thanks to its advanced diode architecture and optical design, the STORM 400x achieves an impressive 27,100 lux at 1 meter (5600K) when using its included 35º reflector.

Ultra-high color accuracy

The above mentioned output is paired with industry-leading color metrics: CRI and TLCI ≥95, CQS ≥96, SSI (Tungsten) 87, SSI (D56) 85, and average TM-30 scores of Rf 95 and Rg 100. This makes it a reliable fixture for color-critical work.

87%+ coverage of Rec. 709 color gamut

With over 87% Rec. 709 color gamut coverage and smooth 0.1–100% stepless dimming, the STORM 400x excels in both creative expression and technical consistency.

IP65 weather resistance

Built for demanding workflows, the STORM 400x is housed in an IP65 weather-resistant body and features Aputure’s ProLock accessory system, offering enhanced accessory security and optical alignment when working with heavier or optical modifiers.