For starters, the Search Light is surprisingly lightweight, yet it has very good ergonomics. It's small enough to be considered "pocket-sized," but big enough to fill your hand and not slip through your fingers. The on/off button is situated right where your thumb would naturally go. The first click turns on the 250-lumen high beam. Another click takes the beam down to one-fifth the power (50 Lumens) for a lengthier run time. This light runs for over an hour on high, and about 5 hours on low. A third click activates a red flashing ring for signaling, and a fourth click activates a very bright strobe beacon positioned at the butt of the flashlight. If those visual signals aren't enough, there is an integrated whistle at the butt of the light, too. It's painfully shrill tone should get the attention of a SAR team. The splash-proof Search Light is an outstanding light for the price and would be a smart addition to a roadside emergency vehicle kit, a survival kit, a bug out bag, backpacking supplies, or just to keep on your bedside table.