Hi. I leave a couple of links for you to check. What yes, these plates usually have the value of the components in their serigraphy. Keep in mind that they are of poor quality, do not be surprised if you repair it and burn again. They are design errors and lack of protections. regards
https://yoreparo.com/hogar/electricidad/luces-de-emergencia/preguntas/1547588/luz-de-emergencia-marca-sonex-hb-860
https://yoreparo.com/hogar/electricidad/luces-de-emergencia/preguntas/1522740/luz-de-emergencia-circuito