Shadow GF1 18650/16340 for $37 tube $8

Seems like both lights cost $37 each.

You can buy 18650 or16340 tube for $8 free shipping.

All I can say it's cheap compared the the Sunwayman C10r and C20C

GF1 18650 version Size: 111mm*25mm(head diameter) 74g

C20C 105mm x 25mm (head diameter) x 24mm (tail diameter) 57g

GF1 16340 78mm*25mm(head diameter) 61g

C10R 82mm X 25(Head daimeter) 63g

I believe the 18650 version is 111mm long.

You are probably right it,I just cut and paste it. thanks