QVEVDACAR LED Strobe Drone Lights, 7 Colors Mini USB Rechargeable Lighting, Anti-Collision Tail Lights for Aircraft Flying, Motorcycles, Trucks, Cars, Bike (4-Pack)

just plain poor quality - charged them, put one on my helmet; went out a few minutes later for unknown reasons although it had a charge (i pressed the button and it lit up - so its holding the charge). all four act the same - they charge fast, and if left untouched will stay on for over an hour on solid light mode; but move them and they may go out - or stay on a while, then go out. not worth the price - not worth 5 dollars, not worth 1 dollar considering the aggravation it put me thru.

Not sure how they made them so small, light and insanely bright. Very cool lights. I put them on rc cars and a drone. I am super happy with them. They may not hold up well to abuse my son already cracked one but he is rough on rc cars. They have tons of functions and colors.

The battery life is amazing. They’re so bright. They work amazing for my RC airplane now the whole neighborhood thinks it’s a UFO.

These are exceptionally bright for their size. The duration is about 3 hrs on full. They are worth their price, and function as described.

The Good: Excellent delivery time Reasonably priced. Set of 4 has entertainment potential The Bad: units came drained of power needed immediate charging to even determine if they work makes me question product's quality control The UGLY: instructions came on an extremely small piece of paper (I've seen bigger postage stamps) When examined under an industrial grade magnifier, the contents were mostly disclaimers. Not even directions on how to turn the light on. Battery life to be determined Bill Hodges