Decent flashlight/spotlight with long runtime?

[Unbreakable]

I've got super power flashlights and spot lights that run anywhere from 1 to 4 hours. And I've got small LED lights that can run for days. What I'd really like to get is a medium powered light that puts out about 80 to 150 lumens, that is rechargable, and has a runtime of at least 15 hours. Flashlight or spotlight frame doesn't matter. I just want a light that can put out useful light and last all night if need be. The longer the runtime at a decent output the better. Anyone got any advice?

 

[meuge]

I've got super power flashlights and spot lights that run anywhere from 1 to 4 hours. And I've got small LED lights that can run for days. What I'd really like to get is a medium powered light that puts out about 80 to 150 lumens, that is rechargable, and has a runtime of at least 15 hours. Flashlight or spotlight frame doesn't matter. I just want a light that can put out useful light and last all night if need be. The longer the runtime at a decent output the better. Anyone got any advice?

How about both?

Fenix L2D-CE Q5 will output 180 lumens on Turbo, and will last for 60 hours on Low (12 lumens), or 10 hours on Medium (55 lumens).

... and the light works great on NiMH rechargeables.

Another choice is a Mag4D with a TerraLux dropin. This outputs >100 lumens and has regulated output for >15 hours with 4 alkaline D-cells.

 

[Lobo]

I'm afraid that 80-150 lumens for 15hours is an odd niche that not many flashlight manufacturers will fill as far as I know. It could be done with a larger light with a large/many cells. Unfortunately, most (all?) manufacturer on the cutting edge seems to be more into making smaller EDC-able lights or slightly larger.

Surefire has the G2 LED rated at 80 lumens for 12 hours, but with 12 hours Surefire means "usefull light". So it will not be 80 lumens on the whole duration.

A Mag 3D or larger with a suitable dropin could maybe be the solution?

 

[Zenster]

The LumaPower standard MRV (205 lumens) with the optional M-65 extender allows you to use two 18650 batteries.

Considering that the light runs on HIGH for 4 hours on one battery, you might get close to where you want to go using it with 2x18650's.

Also consider that it has lower power settings, and it will run for 25 hours on the low setting with an 18650, so imagine the crazy runtime you'll get on low using the dual battery setup.

 

[Unbreakable]

Another choice is a Mag4D with a TerraLux dropin.

What is a terrlux dropin and where would I get one? Is it the Maglite LED upgrade or something else? I have a 2D mag light with LED drop in.

 

[meuge]

What is a terrlux dropin and where would I get one? Is it the Maglite LED upgrade or something else? I have a 2D mag light with LED drop in.

The TerraLUX TLE-6EX is a Maglite dropin that takes about 1 minute to install and no tools. It uses a Seoul P4 U-bin LED, driven at 600mA by a constant current buck circuit (which means the Voltage provided must be higher than the V-in of the LED). The output is probably a little under 150 lumens at the emitter, and definitely less than 135 lumens out front. However, because it can be focused into a tight spot, it's actually a gorgeous beam. The one I got has the best tint of any LED light I own (very warm white).

You can buy it at batteryjunction.com, if you follow this link:
http://batteryjunction.com/tle-6k2.html

From the graph on their site, it looks like the circuit can efficiency regulate for 20 hours on 4 D-cell batteries. Of course, if you are interested in rechargeable batteries, you can use 4 10'000 mAh D-cell NiMH batteries, which will probably give you a substantial increase in runtime.

The only downside to using this, is that Maglites have no good thermal path for the heat from the LED, so the module is prone to overheating.

 

[Unbreakable]

I couldn't get that link to work.... But I will investigate it further, thank you.

Out of curiosity for a fun project... what would something like this do

TLE-300 500-600 Lumen dropin. It's got three 3 watt luxeon K2 flip chip LEDs. What would runtime be like on that with a 6 D cell unit.