The UV LEDs render the indicia clearly visible under {TAIL ~ low lighting conditions} or in {HEAD ~ the dark} 
The UV LEDs render the indicia clearly visible under { TAIL ~ low lighting conditions } or in { HEAD ~ the dark }
OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD