Retro Japanese Powerful flashlight - National BF-769 Bulb + fluorescent

[Kiriakos GR]

New find, old Japanese flashlight. 
Must be technology of 70s.
 
A flashlight with a miniature light bulb and a fluorescent light.
6V
Powered by four D cells.
Alternatively, the Japanese National  (Matsushita Electric Industrial Co., Ltd.) and or as National + Panasonic, it suggests a special rechargeable pack instead.
(Rechargeable Panasonic battery packs (P-14ST) can also be used.) 
Ni-CD ?


National BF-769
Rainproof design
Shoulder carrying strap
National, Fluorescent 4W
National, Incandescent light bulb miniature (krypton bulb) 4.8V 0.5A + spare light bulb.
krypton bulb = long lives, accurate review of color over surfaces ( electric wires )   

Nice yellow bright body, very visible in a emergency
Power switch with three positions,  Bulb - OFF - fluorescent, covered by rubber hood.

I am going to explore all chances, for a conversion to rechargeable, but I will decide after testing it first.
For now, a few stock photographs from Japan they are listed below.   

[Kiriakos GR]

MB-48PF5K = National, Incandescent light bulb / Krypton.