ReyLight Dawn-Titanium Nichia 519a 4000K R9080

Comes with a rechargeable Samsung 30Q 18650 battery.

head dia: 25mm/0.98 inch

total length: 110mm/ 4.33 inch

(battery included) weight: 164g/ 5.78 oz  

Group1: (Moonlight)-2%-20%-100%  ( Default)

Group2: (ML)-10%-40%-100%

Group3: (ML)-2%-10%-50%

Group4: (ML)-50%-100%-strobe-SOS

Click here for  the programming guide.