Difference between LL-2 and LL

I just picked up a as new in box LL-2 3900 and I have a LL-4 200hs, but what are the differences between the LL-2 and the LL-3??? I've never even seen a LL-3. Thanks ACCUR8

LL3 has smart control, (gives you info, speed,footage,mil,paint used,pressure) LL3 uses different paint filter than the LL2 and 200HS. Also, the pumps are not the same(can't remember the particulars)

The HS 200 has a motor that runs a hydraulic paint pump. All the rest have a motor that runs a generator that runs an electric motor that connects to an electrically controlled clutch by way of a control board that runs the paint pump.

Whereas a Titan has a motor that runs a belt (that you have to replace regularly*) that runs a pump that pumps a special hydraulic fluid (that you have to replace regularly*) that runs thru a filter (that you have to replace regularly*) that runs a hydraulic cylinder (that gets really hot**) that drives the paint pump. But alas, no smart control, just a knob. Did I mention the Titan's motor has to run at a higher RPM to handle the load of the hydraulic pump, making more noise and using more gas $$$$$? *Unless, of course, you don't believe in routine maintenance... **You can tape hot dogs to the outside of the hydraulic cylinder in the morning and they will be cooked thoroughly by lunch!!! Don't forget to toast the buns on the muffler! PS I was unaware there was an electric motor on the 3900's....I need to go study my parts breakdown again....oh wait....I have no idea where it is, since I've never used it.....

I didn't say anything about Titans. Thanks for mentioning the "smart" control. I forgot.

Maximum delivery LineLazer III 3900 . . . . . . . 1.15 gpm (4.4 liter/min) Maximum delivery LineLazer II 3900 . . . . . . . . 1.15 gpm (4.4 liter/min) Same machine but the LLII does not have the gizmos Jim