Photo made with neon power supply(7kV, 20mA) for continuously lighting, not flash. For flashing - must make scheme that shown in a passport.
Technical details
IFB-300 and IFK-500 pulsed glass lamps (also sold in the store) are an electric gas-discharge source of powerful short-term multiple flashes of light.
The lamps are intended for lighting when photographing, but can also be used for other technical purposes when the use of intense short-term light flashes of appropriate power is required. Due to the fact that the IFB-300 lamp has the shape of a ring, it can be used for shadowless shooting when the camera lens is placed inside the ring.
Nominal flash energy - 300 Joules
Minimum lamp ignition voltage - 240 V
The shortest service life - 10000 flashes
Self-breakdown voltage of the lamp - 1500 V
Flash duration - 0.008 s
Initial illumination - at least 500 light-seconds
The capacity of the supply capacitor 6500 (+ -500) uF
Load factor H - maximum 250 µF*kV(4)
Of the features of the lamp - the presence of not classic cap leads, but like fuses - in the form of knives for easy installation of the lamp into the terminal block. These lamps were used for lighting when photographing. Due to the fact that the lamp is in the form of a ring, it can be used for shadowless shooting by placing the lens inside the lamp ring.