Review on Super Bright LED Flashlight S3000 by WdtPro - High Lumen, IP67 Water Resistant, 3 Modes & Zoomable for Camping, Emergency, Hiking, Gift by John Pound

I'm an airline pilot. Bought for a pre-flight check of the aircraft's appearance. I was impressed with how long the battery pack lasted. I used rechargeable AA batteries and only replaced them every 4 months. The only specs buyers need to be aware of are: 1) If you bring the beam to its maximum distance (smallest illuminated area) it becomes square since the LEDs are arranged in a square. 2) A dimmer could be used, it cannot be used in the cockpit as it is too bright. It's blindingly bright even at the widest angle. I have a small single AA flashlight that I use in the cockpit.