Mazda FA.7 Xenon Photoflash

Manufacturer: Associated Electrical Industries Ltd. (Lamp 97-2007)
Lamp Power: 200 Joules
Lamp Voltage: 2500 Volts (3.5kV Min Trigger Voltage)
Capacitor: 64 mF
Cap: UX4 (Bakelite)
Bulb Finish: Inside Frosted
Bulb Type: T-30 containing spiral with 255mm arc gap
Overall Length: 80 ± 2 mm
Light Centre Length: 48 ± 5 mm
Electrodes: Backwound thoriated tungsten
Atmosphere: Pure Xenon
Luminous Flux: 24.8 Megalumens at peak
Flash Duration: 1/10 Peak : 800msec 1/2 Peak : 290msec
Colour Temperature & CRI: Not Published
Chromaticity Co-ordinates: Not Published
Rated Life: 10 million flashes
Factory: Leicester England
Date of Manufacture: July 1964
Original / Present Value: £7 9s 0d (1969)£74.16 (2001)