Aputure STORM 400x
The STORM 400x is a pro-tier 400W bi-color Bowens COB with app control and an IP65 weather-resistant build, a strong high-output option. It's pitched at owner-operator filmmakers who want a tunable-white key that doubles as a compact big-light replacement for location work in the elements. The bi-color engine and weatherproofing make it a strong run-and-gun key; just note it's daylight-to-tungsten white only, not full RGB.
Scores
BreakdownHideOverall71±6Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions; excluded here: compatibility (no ecosystem dimension).
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| mount type | bowensFlagged | Flagged |
| color mode | bicolorSourced | Sourced |
| power (W) | 400Sourced | Sourced |
| app control | yesSourced | Sourced |
3/4 detail specs sourced · 1 flagged for verification. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- high-output tunable-white key light
- owner-operator filmmakers
- weather-resistant (IP65) location work
- compact big-light replacement
Who should skip this
- Indoor talking-head creators — 400W is more key light than a small room needs
- RGB/effects shooters — this is tunable-white only, no full-color control
- Budget builders — you're paying for IP65 weatherproofing and big output most won't use
Where to buy
List price $1,059
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jul 16, 2026 — retailer prices change often, so click through for the current price.
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Compatibility
No platform-specific compatibility requirements — this works in any standard photo / video setup.
Upgrade path
A top-tier light — there's little to upgrade to within the category.