Lithium battery (lithium-thionyl or LiSOCl2) brand Voltec. The "M" variant has a lower capacity, but it lends itself better to applications with higher currents, compared to the standard ER34615...

Economical bulb General Electric Biax™ S/E 4-pin F7BX/827/4P 2G7 - code 37658- with a long life, used in offices, homes and industrial/commercial spaces, in special lamps with 2G7 type clamp. ...

Metal iodide light bulb for lighting commercial spaces, interiors, arcades, buildings, monuments, museums, exhibition halls, public and pedestrian spaces, parks and gardens with a very long lifespan...