This is an article describing the process I used to build a couple of wooden LED bunk lights for my friend's houseboat. I designed these myself. I also built and installed them without assistance, so it's an easy project. You will also see photos and video of a black-stained, RGB LED Bunk Light I built for my son's bunk bed at home. This is truly a versatile project.
The "Small LED Bunk Light" is designed to run off of a 12V battery, but you may use any 12V DC source that can handle the power requirement. The battery I use is a standard marine deep cycle 12V battery that I have set aside strictly for the purpose of running this light. It is recharged daily by a small solar charger.
Depending on the type of LED strips you use, this unit will consume only 2 to <7 Watts of power. This light also produces significantly more lumens per Watt than the previous bulbs and fixtures that were installed. Additionally, the "run-time" from the battery is longer and the lighting is visually more pleasing. This has been my experience, yours will vary based on your build & parts list.
—►WHY ARE THESE LIGHTS SO AWESOME? I spent only $5 building each one!
—► If you like what I've made and it inspires you then please vote for me and share your project photos!
♦SEE MORE! If you would like to see the larger version of this project which is used as a houseboat cabin light, click HERE.
►DESIGN & BUILD NOTES:
You should be able to build one of these with scrap or inexpensive wood and tools you may already have on-hand. Of course, if you choose to use premium hardwoods then you can expect that the results will be absolutely fantastic. If you don't have a table saw then just use a regular handsaw. As long as the blade makes a cut wide enough to hold your plastic lens you will be fine. My primary investments on this project were the switch and the LED strip lights (just over $4.49).
►WHERE ELSE CAN YOU USE THESE LIGHTS?
Anywhere you have a 12V DC battery or 12V DC Power. This will work great in car trunks, bid-rig truck bunks, boats, R.V.'s, storage areas, work areas, laundry rooms or as general purpose bunk bed lighting. They are great since they are tough and need no maintenance. This lighting unit design gives you the opportunity to redesign it to fit your tastes, needs and budget.
With an A/C adapter as power, I have some of these working well on my son’s bunk bed at home. Two long versions of these lights (with no installed power switch) are also being used as landscape lighting along the fence in my yard where I park my car at night. Their power source is a simple ATX Power Supply located indoors. You can also scavenge sufficiently decent power supplies from set-top entertainment equipment, corporate networking equipment, mini-pc's..etc.
As I mention in a comment below, 120v to 12v adapters will work nicely but they need to be rated high enough to cover the power requirements of your light. Be sure to review the datasheet provided by the LED manufacturer for power requirements per meter.
►WHAT WAS MY NEED FOR THIS LIGHTING?
I designed these for a friend of mine to help him update his house boat with a higher quality bunk bed reading light. It features a high-quality switch as well as 85,000-hour warm white SMD5050 LED strips to nearly eliminate maintenance. Many of the 5W and 10W bayonet light bulbs used in marine lighting (deck lights, bunk bed lights, bathrooms and kitchens..etc.) are cheap --which is good-- but they will drain a battery in just a couple of hours and they also have to be replaced regularly.