Picture of DIY Outdoor Light
A super easy water bottle nightlight that you could take everywhere!

Step 1: What You Need

Picture of What You Need
All you need is a headlamp and some sort of water jug full of water. A milk jug works perfect.
overcomer81 month ago
Awesome idea!
Why have I been carrying both a head torch and a lantern in my camping box all these years?!

Because you should always have a backup source of illumination...

Dude how are you such a genius
same Idea that those guys use in third world countries that have no electricity for their homes. These guys would take 2 litter bottles and put in boiled water to kill all bacteria and living organisms. Then they put it on the people's rooftop as a sky light with just the sun as a light source. Works very well there so we might as well use that idea for hunting where electricity is scarce too.
Ole bally Hieu1 year ago
They use this idea slightly differently! They use a 2L PET Coke bottle, fill it with clean water and put 2 tblespns of Chlorine in it. They then cut a hole in the tin roof and secure the bottle half way in the hole. The sun then refracts the light through the bottle...55w of light! It only works during dayligh outside to light a dim room!
Maybe try some Chlorine in this instructable and see if it brightens the light!
Reiff1 year ago
Also, what headlamp is that, it does look bright. I think I want to get a Black Diamond healamp, but that one looks good too.
chokapi Reiff1 year ago
That's a Princeton Tec Eos II, 80 lumens, similar to the BD Spot with 90 lumens. The Spot does have more features, however, and is quite a bit less expensive, if you shop wisely. Try Sierra Trading Post.
Why have I been carrying both a head torch AND a lantern in my camping box all these years?!
I still do -- if my headlamp batteries die, I'd like to have a backup source of light to find my spare batteries at oh-dark-thirty. Or, if my headlamps becomes compromised, a backup source. Some things deserve redundancy when backpacking.
Reiff2 years ago
I don't get why you would just where a head lamp because you would think that putting the light inside the milk jug would waste some light. I understand that the jug is supposed to throw the light around the area, but I would rather have direct bright light, than to have a dim light all around. It isn't a bad idea.
Hieu Reiff1 year ago
you get diffused light in a larger area -- so the light is not as bright as the headlamp itself would provide but give light to much larger area; hence the whole instructable here. I guess a camp lantern is an idea lost on you.
Reiff Hieu1 year ago
Well I have treid it already, and no, it isn't actually that bad. Although I only had a little tiny LED flashlight, but if you had a head lamp that goes up to like 100 lumans, that I bet it would work really well. And, no, I just didn't think the headlamp and milk jug would throw that much light, because looking at the pictures, it didn't.
chokapi Reiff1 year ago
For backpacking, that's a little big. I use a ping pong ball I cut in half -- a white one in winter and a yellow one in bug season with an elastic hair tie cut and then knotted in holes in the ball-half. I attach to my Princeton-Tec Fuel headlamp. Virtually weightless, and easily replaceable. You can also use a piece of surgical glove, origami wax or parchment paper, lots of other lightweight options. But for chilling at the car campsite? Great job.
Bro_Man1 year ago
this is smart pull you can see at night when hunting
Tezcumpapa2 years ago
I use empty Clorox wipe canisters. Peel off the overwrap and insert an led white with its own battery. Night light made. I like your idea better because you know where the water jug is and the headlamp is easy to turn off. You might also place a light near the outhouse. I used to change camping sites (some near cliffs), that made this a lifesaver, expecially if there are small children in your group. For that, I use a cheap solar charged outdoor light.
Kozar2 years ago
what about coloring the water inside for a colored lighting effect?
DJPantheris2 years ago
simple but effective.
kitwah2 years ago
What a simple effective camping idea. Love it.
Robbie Carlson (author) 2 years ago
Yes, I find it works very well. And illuminates my tent but it's better to use as just a nightlight
DanYHKim2 years ago
This is a great idea, and shows some good observational skills to come up with it. I just tried a similar thing with a water bottle and laser pointer, which gives some interesting and fun reflection effects.
dancmarsh2 years ago
I knew I'd seen this before!


via interestingengineering.com
Amazing I never thought of this. Next camping trip I'm using this thanks
caarntedd2 years ago
Very simple, very clever.
kretzlord2 years ago
I like the idea, does it throw any useful light?