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...

Bulb for street lighting, courtyards, commercial spaces, tunnels or industrial halls, with sodium, with long life (28,500 hours) and high lighting power (26,000 lumens), General Electric code 44052:...