Godox QT400IIM 400Ws Strobe Studio Flash Light Specifications 1. Model: QT400IIM 2. Flash Mode: MMultiHSS (High Speed Sync) 3. Guide No.: GN65 (m ISO 100 with standard reflector) 4. Power: 400WS 5. Recovery time: about 0.05-0.7s 6. Output: M mode: 1128-11; HSS mode: 116-11; Multi-mode: 1128-18. 7. Multi-flash: yes (flash time up to 99, flash frequency up to 30) 8. Sync mode: high-speed sync (up to 18000s), first-curtain sync, second-curtain sync. 9. Delay flash: 0.01-30s adjustable 10. Flash function: yes 11. Fan: yes 12. Buzzer: yes 13. Modeling lamp: 150W 14. Slave trigger model: S1S2 15. Color temperature: - Stable color temperature mode: 5600K+-200K - High speed flash (speed) mode: 5400K~9000K - High-speed sync flash mode: 4600K~5000K 16. Radio 2.4G wireless transmission: 17. Wireless function: slave unit, onoff 18. Controllable slaves: 16 groups 19. Transmission Range: Approx. 50 meters 20. Channel: 32 21. Synchronization trigger mode: 3.5mm synchronization line, PC synchronization socket, wireless control port Package List 1. Flash Strobe Light x 1 2. Modeling Lamp x 1 3. Standard reflector x 1 4. Power Cord 5. User Manual x 1 6. Lamp Cover x 1