The best part (besides the sylvania lifeline end caps) is that this isn't an Alto... It'd be a little strange seeing this style endcap green, especially on a BLB lamp lol.
the F20 was made in holland, but it was NOS from 2003, sitting on the shelf at HD for ten years. BTW, i looked online at lowes and saw the 4ft black light lamps. $9.50 for a 4ft lamp. i paid 15 bucks for the one above. they probably have the 2ft ones in stock at the store though. I've noticed their online inventory doesn't always match up with the in-store inventory...
Anyway nice lamp!