Question 1

How many lumens output?

Accepted Answer

Disregarding the extremely exaggerated marketing with today's flashlight, are you asking about Raw Lumens or Effective Lumens? Definition of lumen: "the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela". Hydralight advertises their lumen rating in the 80 - 100 lumen range, which is plenty bright for emergency situations. Also, don't attempt a comparison between an emergency flashlight with a tactical flashlight. The two are designed for entirely different applications.

Question 2

i used hydralight one time and it turned the battery black and stopped working.  what causes that??

Accepted Answer

This is not an everyday use light. It is an emergency light only. It seems a majority of reviewers here are not comprehending this fact.

It uses a 'fuel cell'. Fuel is a consumable. Once consumed it will no longer produce electricity for the light. This is the very reason why the light doesn't function after someone activated the fuel cell and set it on the garage shelf and came back a week later to find it dead.

As far as the claim goes on how long a fuel cells lasts, well, your mileage may vary.

This is an emergency situation light that does not require batteries that could be dead when called upon to be used in an emergency situation. This light can be stored indefinitely in a bug-out or go-bag for a true emergency situation.

I hope this helps clarify some misconceptions about this light.

Question 3

How many hours will it last total?  How long before it no longer works?

Accepted Answer

Actual tests show a very faint light that lasts only 15 or so hours.  Not sure where this 100 hour or 300 hour claim comes from, but if you think about the amount of energy that is for a standard white LED (20ma @ 3.3VDC) you'd be looking at nearly 20Wh just from a dip in water?  Just think about that claim.  If you had 50 of these, you'd be able to run a 1000 Watt microwave oven for 1 hour!   Sorry... free energy does not exist.

Question 4

how many lumens?

Accepted Answer

Disregarding the extremely exaggerated marketing with today's flashlight, are you asking about Raw Lumens or Effective Lumens?  Definition of lumen: "the SI unit of luminous flux, equal to the amount of light emitted per second in a unit solid angle of one steradian from a uniform source of one candela".  Hydralight advertises their lumen rating in the 80 - 100 lumen range, which is plenty bright for emergency situations. Also, don't attempt a comparison between an emergency flashlight with a tactical flashlight. The two are designed for entirely different applications.

Battery Description	Fuel Cell (Water-powered)
Item Weight	0.7 Pounds
Mounting Type	Tabletop Mount
Water Resistance Level	Water Resistant
Battery Life	300 Hours
Specification Met	(unset)
Manufacturer	Infomercials, Inc.
UPC	858867004071
Global Trade Identification Number	00858867004071
Part Number	HL17FLAN
Item Weight	11.2 ounces
Product Dimensions	10 x 3 x 3 inches
Item model number	Hydralight 2-in-1 Flashlight and Lantern
Is Discontinued By Manufacturer	No
Size	1 Fuel Cell
Item Package Quantity	1
Special Features	Durable,Portable
Included Components	Hydralight 2-in-1 Flashlight and Lantern
Batteries Included?	No
Batteries Required?	No
Description Pile	Fuel Cell (Water-powered)

Hydralight 2-in-1 Flashlight and Lantern

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