Only sell 8 limited edition Fireflies E07. Specification: Name LED Flashlight Brand Fireflies Model E07 Type CU TI / Brass Lamp bead SST20 4000K/XPL5000 K Light color Red Battery 1x 21700/1x 18650 battery (Not included) Lens 25 degree angle TRI lens Coating 98% AR coating glass lens Current Digital current regulation on lower brightness Waterproof IPX6 waterproof Size 113mm (L )x 37.5mm (Head) x 26mm (Body) Version type:7x SST20 4000K FD 4500 lumens 7x XPL HI V3 3A NW5000K 6900 lumens Turbo brightness Package Included:1x Standby O rings 1x Stainless Steel clip 1x Landyard;1x Gift box How to operate the light?