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...

Lithium Ion battery type 18650, industrial type (bulk), without individual protection on the cell and with low terminals (low top), mainly used in various mounts for hoverboards, electric scooters...

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. ...