wow, you're like the consumer reports of cpf. i will never buy a this jet pro now. whats the point of an r2 with a driver that seems basicly like a horribly inefficient resistor for getting low and medium. i mean seriously. low and medium dont last longer than high??? might as well be a one mode light in my book. the point of a low low is not just creeping around the house at night. its for a long runtime/good emergency light.