Features 

Voltage Input: 3.7V -- 4.2V
Output Current: 5A constant
Features: DTP copper plate and copper base (Good heat dissipation)
Color BIN: 6500K Cool White LED
5 Modes: Very Low(10mA)--Low(500mA)--Medium(1.5A)--High(5A)

Memory function: yes, mode is memoried  after the working mode is closed 

                Double-click at any working mode , it enters into Strobe mode
Special compatible for C8 flashlight
 
Tempreture control function is set automatically. when it arrives 50 Celsius,the currnet drop down slowly. when it is below 45 Celsius, the current rise slowly again

Package:
 1x  C8 18W LED Replacement Module