Description A4 Pro is the upgrade version of the Aurora A4x. The USB cover is not easy to pull out and it stays in the position, thus improving the water-resistance performance. The battery is upgraded to 330mAh, an increase of 70mAh might be not a big difference in other products, but for a keychain light, it makes a significant difference. The optical is also changed to a LOP reflector that will have a smoother and longer beam distance.
CREE cool white LED max 650 Lumens or Nichia High CRI LED at least 90 CRI
Premium material, made of titanium alloy
Uses 330mAh Lithium polymer rechargeable battery
Improved charging port cover design
LOP (Light Orange Peel) reflector
Momentary On and Mode memory available
Size: 60.5mm / 2.38” (Length) x 15.6mm / 0.61” (Diameter)