Bowstring activated linear switch
Fool proof operation in any condition
Long life lithium battery
Super bright LEDs
Water and weather proof
Unsurpassed reliability
Available in green,blue,red, and pink
Fits standard carbon .244 ID shafts
3 lighted nocks per pack
Exclusive patented linear switch design works every time, no wires of connections, simple bowstring activated push on switch, easily switches off when done, extended burn time of 20+ hours, water proof, use in any conditions, see your arrow impacts under any light and find that arrow on pass thru shots, great for bowfishing!