As far as I know Pro Lite Tour was sold only in Europe. It comes from the same mold as the Prestige Tour 660 (PT660 has the Suspension Grip) and Classic Midplus. The head size is 660 cm2 or 102 square inches.
I had a good luck to find and just order from Italy a second Head Pro Lite Tour 660, red and black one. I guess i am a 4.0 player, and by having played with this piece of art, leaded up to 330 gr strung, since 2017, I can say that this is the best stick in the world ever made. During my live I played and can compare it with Radical Zebra 630, Ti.Radical 630, I.Radical 630, Prince Triple Threat Graphite, i.Speed 630, Babolat Pure Drive (feels like it´s made of aluminium), Head Prestige Tour 660 Suspension Grip, Wilson Pro Staff 97 S 2015 (Dimitrov´s one, too hard, unflexible), Wilson Clash (feels empty, like made of plywood), Head YT IG Prestige Pro 2012 (doesn´t feel so solid and if you miss the sweet spot your strike won´t be impressive). The Pro Lite Tour 660 has everything - that pocketing feeling, when it seems that the ball flattens against the stringbed, it feels solid, it sounds so impressive, and even if you mishit the sweetspot - the strike is still solid.