Overview & Key Features
Think LS 300/600 class ease with smarter color and weather sealing. The STORM 400x runs the BLAIR engine for high-fidelity white and subtle color looks when needed—perfect for mobile crews and tight studios.
Highlights:
- 400W tunable white, 2,500–10,000K with full ±G; matches or beats many higher-watt COBs aputure.com
- ProLock Bowens, IP65, Sidus/CRMX/DMX control aputure.com
- With CF7 Fresnel, can push ~225,000+ lux @ 1 m (spot) for punchy beams aputure.com
Real-World Impressions
The 400x is a sweet spot: shoulder-friendly head, compact control box, and enough output to key interviews with diffusion or punch through windows with a fresnel. Low fan noise and precise ±G make it painless to intercut with practicals or daylight. The ProLock mount feels overbuilt—in a good way.
Pros: travel-able size, serious output with fresnel, proper weather sealing, broadcast-friendly control.
Cons: bi-color (not full RGB), AC/battery ecosystem requires planning for mobile days.
What People Are Saying
- “One of the best white-light scores I’ve tested.” — independent testing calls out high SSI values — YouTube
- Strong real-world praise for color/skin and build, with multiple side-by-sides vs 300/600-class lights. — YouTube
Price & Where to Get It
MSRP: $1,059 (US) aputure.com
Reasons to Buy
- Small rig, big-light behavior with CF7
- Fast ±G matching for mixed sources
- IP65 for exteriors
Watch
Independent test: “Best light I’ve tested” (400x) — YouTube
