Great light output in this tube for the price.
However, the locking mechanism that connects the battery grip to the tube itself has some play in it, Could be a manufacturing error with the particular units I recieved, as this is not the case with the t4cs I own.
Also, one of the two battery grips I recieved has a shorter cable than the other, not ideal but still just long enough t power the tube.
Minor manufacturing errors that don't bother me too much..
Still a great light!