Sometimes we use just the same NEMA tags, sometimes plain text labels ("HPS 250W"), sometimes its a mess
It is especially a mess with small lanterns that tend to get the gear damaged by water ingress, and the gear is replaced with whats on hand and not allways the same as other lanterns in the row, so you can have a mix of 70W HPS + 125W Mercury, or 100W HPS + 150W HPS etc. Sometimes they indeed put in the wrong lamp
The most interesting failure i seen is from a 125W Mercury lamp used in a 100W MH lantern without removing the ignitor. The thing arced and melted the stem press of the outer, and blew clear off the stem. Now the frame with the arctube (arctube is intact) and some bits of glass are just loosely laying inside the outer and scratching off the phosphor. I didnt see that when it happened, just got the lamp & lantern when the entire place (8 lanterns) were replaced (with LED)
Here kids used to bang metal HPS poles and that would make the lamp go out and cycle
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