INON

S-220

Model INON S-220
Strobe Control Mode (*1) S-TTL Auto / Manual
Connection Optical D Cable
Guide Number at FULL (*2) 22 [without filter]
19 [with Strobe Dome Filter S [SOFT]]
5.6 [with Strobe Dome Filter S [ND]]
Settable power at Manual mode (*2)

*( ) stands for Control Dial position
22(FULL) 19(-0.5) 16(-1) 13(-1.5) 11(-2) 9.5(-2.5)
8.0(-3)  6.7(-3.5) 5.6(-4) 4.8(-4.5) 4.0(-5) 3.5(-5.5)
(1/2EV.increments, 12 steps)
Beam Angle 140°(horizontal) × 100°(vertical)[without filter]
150°(horizontal) × 110°(vertical)[with Strobe Dome Filter [SOFT]]
Color Temp. Approx. 5500K [without filter]
Approx. 5400K [with Strobe Dome Filter [SOFT]]
Recycle Time at FULL (*3) Approx. 2.1 seconds minimum ["eneloop" batteries]
Approx. 2.0 seconds minimum ["eneloop pro" batteries]
Approx. 2.5 seconds minimum [Alkaline batteries]
Approx. 3.5 seconds minimum [Lithium (1.5V) batteries]
Flash Capacity at FULL (*3) Approx. 380 flashes ["eneloop" batteries]
Approx. 500 flashes ["eneloop pro" batteries]
Approx. 350 flashes [Alkaline batteries]
Approx. 640 flashes [Lithium (1.5V) batteries]
Compatible Batteries AA "eneloop" (BK-3MCC) [recommended] x 4
AA "eneloop pro" (BK-3HCD) [recommended] x 4
AA NiMH (*4) x 4
AA Alkaline (*4) x 4
AA Lithium (1.5V) (*4) x 4
Dimensions Diameter: 80mm / 3.1in. Height: 91mm / 3.5in. Depth: 128mm / 5.0in.
(*Including protruded parts)
Weight[air] 348g/12.3oz [no battery, no filter]
463g/16.3oz [including 4x “eneloop”batteries]
Weight[underwater] Approx. 50g / 1.7oz (with 4x "eneloop" batteries)
Working Temperature 0°C - 30°C / 32°F - 86°F [water temperature]
Storage Temperature 0°C - 30°C / 32°F - 86°F [air temperature]
Depth Rating 100m / 328ft
Body Material / Color Polycarbonate/red
Package Contents Strobe Dome Filter S [SOFT],
Strobe Dome Filter S [ND],
Rubber Cap for Sensor
INON Grease

Model INON S-220
Strobe Control Mode (*1) S-TTL Auto / Manual
Connection Optical D Cable
Guide Number at FULL (*2) 22 [without filter]
19 [with Strobe Dome Filter S [SOFT]]
5.6 [with Strobe Dome Filter S [ND]]
Settable power at Manual mode (*2)

*( ) stands for Control Dial position
22(FULL) 19(-0.5) 16(-1) 13(-1.5) 11(-2) 9.5(-2.5)
8.0(-3)  6.7(-3.5) 5.6(-4) 4.8(-4.5) 4.0(-5) 3.5(-5.5)
(1/2EV.increments, 12 steps)
Beam Angle 140°(horizontal) × 100°(vertical)[without filter]
150°(horizontal) × 110°(vertical)[with Strobe Dome Filter [SOFT]]
Color Temp. Approx. 5500K [without filter]
Approx. 5400K [with Strobe Dome Filter [SOFT]]
Recycle Time at FULL (*3) Approx. 2.1 seconds minimum ["eneloop" batteries]
Approx. 2.0 seconds minimum ["eneloop pro" batteries]
Approx. 2.5 seconds minimum [Alkaline batteries]
Approx. 3.5 seconds minimum [Lithium (1.5V) batteries]
Flash Capacity at FULL (*3) Approx. 380 flashes ["eneloop" batteries]
Approx. 500 flashes ["eneloop pro" batteries]
Approx. 350 flashes [Alkaline batteries]
Approx. 640 flashes [Lithium (1.5V) batteries]
Compatible Batteries AA "eneloop" (BK-3MCC) [recommended] x 4
AA "eneloop pro" (BK-3HCD) [recommended] x 4
AA NiMH (*4) x 4
AA Alkaline (*4) x 4
AA Lithium (1.5V) (*4) x 4
Dimensions Diameter: 80mm / 3.1in. Height: 91mm / 3.5in. Depth: 128mm / 5.0in.
(*Including protruded parts)
Weight[air] 348g/12.3oz [no battery, no filter]
463g/16.3oz [including 4x “eneloop”batteries]
Weight[underwater] Approx. 50g / 1.7oz (with 4x "eneloop" batteries)
Working Temperature 0°C - 30°C / 32°F - 86°F [water temperature]
Storage Temperature 0°C - 30°C / 32°F - 86°F [air temperature]
Depth Rating 100m / 328ft
Body Material / Color Polycarbonate/red
Package Contents Strobe Dome Filter S [SOFT],
Strobe Dome Filter S [ND],
Rubber Cap for Sensor
INON Grease

As of July 2023. Specifications/product design subject to change without prior notice.

Test battery

"eneloop" battery Panasonic "eneloop", BK-3MCC, 1.2V, Min.1,900mAh
"eneloop pro" battery Panasonic "eneloop pro", BK-3HCD, 1.2V, Min.2,500mAh
Alkaline battery Panasonic "EVOLTA NEO", LR6(NJ), 1.5V
Lithium (1.5V) battery Energizer ULTIMATE LITHIUM, L91, 1.5V

Test battery

"eneloop" battery Panasonic "eneloop", BK-3MCC, 1.2V, Min.1,900mAh
"eneloop pro" battery Panasonic "eneloop pro", BK-3HCD, 1.2V, Min.2,500mAh
Alkaline battery Panasonic "EVOLTA NEO", LR6(NJ), 1.5V
Lithium (1.5V) battery Energizer ULTIMATE LITHIUM, L91, 1.5V

(*1) Compatible flash mode varies depending on combined camera system.
Please refer the instruction manual for detail.
(*2) Measurement in air/ISO100 at 1m
(*3) Reference test data by INON. Measured with FULL strobe output at 30-second intervals with Advanced Cancel Circuit switch set to “1” in water of 25°C/77°F giving 10 minutes cooling period every 50 flashes.
(*4) Not all Ni-MH batteries are confirmed compatible. To avoid battery issues like battery leak, use good quality batteries that are capable of continuous discharge at high currents referring to (*3),