Lutron DT-2349 Stroboscope, High Intensity Light

digital synthesis, high intensity light \nSTROBOSCOPE \nModel : DT-2349 \n* New generation Stroboscope. \n* Digital synthesis circuit, high stability and easy adjustment. \n* Range : 60 to 32,000 RPM. \n* Adjustment resolution : 0.1 RPM/1 RPM. \n* High intensity light. \n* Setting buttons : digital adjusting button, x 2 button, ÷ 2 button, + button, - button, easy to adjust the desired RPM. \n* ACV Power supply : \nACV ( 100V to 240V ) to DC 9V ( 3A ) adapter, power adapter is included. \n* DCV Power supply : Built-in battery compartment, power can use the DC 1.2 V Ni-MH recharged battery ( UM-1/D size ) x 4 PCs which are not included.