Description With the 30W LED modeling light, Q4 supports TTL, wireless triggering, high speed sync, front/rear curtain sync and offers 400 full power flashes, 0.01-1.2s recycling and 1/209-1/10989s flash duration. Specifications Model: Q4 Power: 400Ws Guide Number: GN72 (m ISO 100 with high performance reflector) Flash Duration: 1/209s to 1/10989s Recycling Time: Approx. 0.01-1.
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