Brewdog Light Speed Hazy IPA

There's not too many craft or micro breweries that brew light beer, but here we are. Light Speed pours a brilliant lemon yellow with a snow white, two-finger head. At 4.0% ABV, it sessionable for sure, but like many of Brewdog's beers, I can't find the IBUs anywhere. I'm detecting some grapefruity hoppiness, but I think despite them calling it an IPA, it's more like a pale ale. I've often commented how "IPA" being so popular among craft beer geeks and hipster types, just about everything gets labelled an IPA, whether or not it warrants the appellation. There are no flavors added, but the hops impart notes of grapefruit, mango, pineapple, and most prominently, lemon(ade). Pretty decent.