Loon UV Plasma Lights are the ultimate in uv-curing fly tying lights that cure faster, stronger and more tack free for tyers that demand the best. Powered by an 18650 battery that's rechargeable with the included micro USB cable - always have a fully ready to go and max power curing battery in this UV fly tying light. The larger body of the Loon UV Plasma Light allows room for beefed-up components and a second chip providing unmatched curing power.