I wouldn’t bother with the WOWTAC A4. I own there BSS A1S V2 and love it. However, I looked at the specs for the Thrunite catapult v6. They are an exact match to the soon A4. The only difference that I could see, was the longer handle on the A4 and the fact that they claim 2000 lm compared to the catapults 1700 lm. The candela rating remains the same though between the two which is the more important factor for my personal preference. Plus, if you can get a 20% discount on the catapult v6 and pay $59.99 (battery included). Then how does it make sense to pay $49.95 for the A4 without a battery when you’re just gonna end up having to spend money on a battery anyway.