Germany Review by Carsten: 

Review Nightwatch NSX3 mit 3x XHP50

Specification:
Brand:NIGHTWATCH 
Model: NSX3
LED:  Triple Luminus SST20, Luminus SST40,CREE XHP50.2 3V 
          NS23=SST20 *3
           NS43=SST40 *3
           NS53=XHP50.2 3V *3
Max output: 9900lm 
Battery:  unprotected 21700 (NS53A need to use the battery current 35A)
Lens:         Glass with anti-reflective coating
Body:        Aluminum with Type III hard-coat anodizing
Swtich:  Tail switch
Weight:      167g without cells
Dimensions:    41mm head x133mm length
Function: 1. Reverse polarity protection
                 2.Temperature control, 50°C will step down 
                 3.low voltage warn
Modes: M-L-M-H,double clicks turbo 
      triple clickes strobe 

For NS53A 

Modes:  T-H-M-L ,double clicks strobe 

The detail Data: