The most powerful UV light for fly tying, this is the best way to achieve a solid cure with all Loon’s UV curing resins. Uses two AA batteries (included). FEATURES: Maximum intensity light for tying and bench applications 3.8 Watt output Up to 220 lumens Uses 2 AA batteries (included) DIRECTIONS FOR USE: While indoors or shaded from the sun apply Loon UV product and form into desired shape. To cure, shine UV Mega Light on UV product. UV Product should be fully cured and hardened in 15 seconds.