Here at Lam's Motorsports we use:

Lams starting out doing window tinting and it is what we do best. We dare you to find a better deal in town.  We use one piece to tint the back window of any automobile so there are no visible lines.  We have 4 full time tint specialist and of course Lam himself will breakout the razor if there is a lot of extra work.  We typically need between 45 minutes to an hour to tint a vehicle.  Just remember that you can't roll down your window for 3 days after the process, this allows the glue enough time to bond to the window and prevents bubbles in the tint.