I bet they made these NEMA heads because it's a security light it lets light go in all directions illuminating all around, making it a good security light showing around where people would go and preventing people from doing bad things at night.
Full cutoff fixtures limit the spread of light, so that's why they still make these is my guess.
Yeah this at least looks like the fixtures they replace instead of looking like a giant metal waffle. I wonder how it would look if someone stuck a gumball on one.
LEDs in a NEMA head seems very makeshift. If anything, this should have a FCO reflector becuase the refractor does absolutly NOTHING with the LED panel facing straight down. Plus, this won't illuminate as widely as an HID NEMA head. The NEMA itself is nice, but if I were to get one i'd invest in a mercury vapor ballast lol.
It looks like on these AEL NEMAs have the same ballast mount as a yardlight so you might be able to cram that in. I know in some NEMAs where the ballast mounts to the top of the head will need a special NEMA ballast.
Was looking at getting some floods from the wholesalers, but ended up getting an "expensive" ( Salesmans words) PL26 fitting. $30 for the PL unit, the LED ( 25W LED Die inside) was nearly $ 100. I have been using cheap ( not really, but got free) LED motion sensing fittings as temp floods at home, after removing the sensor unit.
469 fixtures which is 341 of the SAT-24S and 128 of the SAT-48S. The whole project cost around $223,000. Remember to take into cosideration the cost of labor and Photocells.
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Full cutoff fixtures limit the spread of light, so that's why they still make these is my guess.