Review on Clip On Fan Portable Desk Fan with LED Lights & Hooks - Rechargeable 11800mAh Battery Operated Fan for Tents, Travel, Camping - 65 Hours Runtime - Mini Fans for Golf Carts, Emergencies by Jessica Edwards

I was concerned that this fan wouldn't push much air, but was pleasantly surprised. Even at the lowest speed, I still felt a nice light breeze about 4 feet away (maybe further, but I didn't test that). At full speed it's definitely moving air. The battery life is quite substantial. Sorry I didn't do any specific testing, I'm just happy with my experience with this fan. I don't really use the light much, but it's bright enough for my needs. I love that they give you multiple ways to mount the fan (snap, hang, mount to its base) and the fan spins either way. Definitely happy with my purchase.