Anyway, this topic will help you understand the readings of NEMA wattage tags.

HPS: Yellow tag.
HPS wattage regarding with the tag:
3 - 35 watt
5 - 50 watt
7 - 70 watt
10 - 100 watt
15 - 150 watt
20 - 200 watt
25 - 250 watt
31 - 310 watt
40 - 400 watt
75 - 750 watt
X1 - 1000 watt

MH - red. PSMH (Pulse start metal halide) half red, half white.
MH & PSMH wattage regarding with the tag:
5 - 50 watt
7 - 70 watt
10 - 100 watt  
15 - 150 watt
17 - 175 watt
25 - 250 watt
40 - 400 watt
75 - 750 watt
X1 - 1000 watt

MV - blue
MV wattage regarding with the tag:
10 - 100 watt
15 - 150 watt
17 - 175 watt
25 - 250 watt
40 - 400 watt
70 - 700 watt
X1 - 1000 watt

LED - white
LED wattage regarding with the tag, which they are custom wattages with "LED" on the bottom of the tag.

Heres what a LED NEMA tag will look like: http://prntscr.com/hkdtnu

Thats all you need to know about NEMA wattage tags, on street lighting.

stuff like this would look real good on a wikipage.... lol jus sayin' .. i think it would be good for the site (refering to a topic in the suggestions tab)
http://www.lighting-gallery.net/index.php?topic=5245.0


What would the color be for LPS/SOX Lamps?

Has to be yellow too, like HPS lamps, I think.

I believe SOX uses green labels.

someone in the past also compiled a list of ballast codes: http://www.lighting-gallery.net/index.php?topic=117.0

ANSI ballast codes are different from NEMA tags, however.

I'm aware, I was just looking through old posts to find any useful/interesting tid bits of info and had found that and figured I'd add it here since some people might ask about ballast codes again sometime in the near future (i recall a recent post about it)...

Is an "X2" tag 2000 watts? According to wikipedia an "X5" sticker is 1500 watts.

There also was a 15H label indicating a S56, 150 watt HPS with the 100 volt arc tube.

Greetings Ugly1! (don't know your given name).

Re:S56, that much I knew, thanks. The powers above 1000 are the ones I'm looking for. Here's the wiki entry: https://en.wikipedia.org/wiki/NEMA_wattage_label

Where can you purchase these Nema labels??

Electromark sells them but you have to buy them in quantity.

I usually just print them myself with a laser printer on some adhesive vinyl and then stick some contact paper on top to protect the text.

If you can get access to a craft vinyl cutter like a Silhouette Cameo those are excellent for making NEMA labels. I made labels for all my lights that didn't have them with one.

I actually found a website for Nema labels. It’s Electromark.com they have all of the labels except for 250 W hps for some reason. But I did print out my own last night. I want to get a sticker machine.

I actually found a website for Nema labels. It’s Electromark.com they have all of the labels except for 250 W hps for some reason. But I did print out my own last night. I want to get a sticker machine.

Gahh, unfortunately nothing for MV or MH. Unless I could do a special order. I wanna get a 175W MV tag eventually!