We teach HID part numbers on Fridays in our School of Lighting program, and that's fitting because they're pretty easy, relative to fluorescents and incandescents.
After new employees spend hours trying to memorize chart after chart for incandescent and fluorescent part numbers, HIDs feel like a gift.
And if you've been tracking with our part numbers series so far, you might feel the same way, now that we've arrived at HIDs.