Nikon SB-400 instruction manual

4 If the flash unit is dropped and damaged, do not touch any exposed interior metal parts. Such parts, especially the speedlight's capacitor and associated parts, could be in a high-charge state and if touched could cause an electric shock. Disconnect the power or remove the batteries and be sure that En you do not touch any of the product's electrical components, and then bring the flash unit to your local Nikon dealer or authorized service center for repair.

5If you detect heat, smoke or notice a burning smell,

immediately stop operation and remove the batteries to prevent the unit from catching on fire or melting. Allow the flash unit to cool down so that you can safely touch it and remove the batteries. Then bring the unit to your local Nikon dealer or authorized service center for repair.

6The flash unit should never be submerged in liquid or exposed to rain, saltwater or moisture unless it is properly protected from the liquids and moisture. Underwater use requires a certified underwater housing. If water or moisture gets inside the unit, this could cause the unit to catch on fire or cause an electric shock. In such instances you should immediately remove the batteries from the speedlight and then bring the unit to your local Nikon dealer or authorized service center for repair.

Note: electronic devices that are penetrated by water or moisture are often not economically repairable.

7Do not use the unit in the presence of flammable or explosive gas. If the flash unit is operated in areas where there is a flammable gas, including propane, gasoline and dust, it could cause an explosion or fire.

8Do not fire the flash unit directly at the driver of a moving car, as this could temporarily impair the driver's vision and cause an accident.

9Do not fire the flash unit directly into the eyes of someone that is at close range, as it could damage their eyes' retinas. Never fire the flash unit closer than 1 meter from infants.

10Do not fire the unit while the flash head is touching a person or object. Such use can result in the person being burned, and/or their clothes igniting from the heat of the flash's firing.

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