Does the U2 have an on/off switch and/or variable speed adjustment?
2062156
No, it does not have an on/off switch. You just have to disconnected from the USB port.
2062157
It has speed adjustment but not a on/off switch the only way to turn it off is to unplug via usb slot and vice versa.
1308915
It's only on or off , no variable controls . It's worked as well as the mikita and dewalt grinders I've owned for about 35% of the price I typically paid .
1073114
There is a on/off switch. But actually it has 3 settings: low, high and off.
1273833
Yes there is an on and off switch. It a pretty good hair dryer I dont think it's adjustable , never tried it.
213185
Sorry, there is no such switch included. See my review posted around May 8, 2014.PAPA
1165712
On/off is manual but easy. Yes, it has built in audio that is surprisingly good. It balances the volume down nicely on my really load bikes.
2107699
No variable speed, which was disappointing, but there is a convenientlyplace "low" & "high" speed switch on topof the unit. "low" works good for startingscrews & "high" works good for removingscrews & the adjustable clutch help control both functions. Battery life has been decent & I like it's and flexibility.Although initially disappointed with thelack of variable speed, I've adapted &really like it. Just a bit of a paradigm shift.
295966
No, just a on and off switch,but very small and convenient for a quick fix. I love it
13033
No it is just an on/off switch. But you can control the speed by buying an speed control rheostat. That is what I did. It costs $50 and amazon has the unit the fan maker recommends.
342782
It is an on/off switch . . the kind that rolls around and clicks on or off.
1366409
It has a variable speed switch, 0-30,000 rpm (I think). In the zero speed position, it is off.
214439
When I used mine it was auto motion, I did not ever have to switch anything. Maybe there is a switch I never found.
2158413
It does not have an on/off switch. The only switch it has is for the UV light.
1258131
Yes, the switch has Auto, Off and On settings. The light is well-designed, reliable and strong. We have been using ours for at least a year in an area of frequent power outages.
285927
Yes. When you order the switch, you choose the configuration. You want the constant on- constant off- constant on configuration. Worked great for me.
2175138
the knob will only adjust the speed. it only turns off when the device it's plugged into is powered down. i have been running it every day since June 20th, plugged into the usb port on my audio video receiver .
233328
no, there is no controllable variable speed. however you can lightly squeeze the trigger switch to gain uncontrollable variable speed