Friday, February 24, 2012

a very bright 1 watt diy led garden light

I have been making my own ultra low power outdoor lighting with a view to saving energy while providing safe and reliable pathway lighting that looks good, is tough and inexpensive yet a bit different from the ordinary.

Up to now, I have been using reclaimed "Moonlights" from the local recycling center. I had placed them around the house to provide low intensity outdoor lighting, mostly of the walkways and steps. A tough electrical wire ran between all the fixtures and a power unit. Each plastic fixture took one bulb chosen for 4 to 11 watts brightness. Great light. Usually I used 7 watt bulbs in each fixture. They worked fine. They were inexpensive or free but they were breakable. When the clear plastic lenses began to get brittle and break from age I knew that I'd like to find a better way. The moonlights were also ugly.

I didn't much like the commercial offerings that are available in low voltage LED lighting. I have never been a coach light fan. The solar powered battery operated ones that didn't need wires were a joke. Not enough light and in two seasons they were dead. I wanted something that was bright, efficient, different but pleasant to look at, weatherproof for 10 years and made from ordinary (hopefully inexpensive) materials yet incorporating the latest in LED components.

I chose wood as the structural material. I am set up to work with wood rather than metals. A wood lamp will eventually blend into the naturally weathered wood deck.

This is only a prototype so the wood looks fresh and new on this dull day.

The glass block in the center admits and scatters the light from the LED array which is at the back of the block, buried in a recess in the wood. Power is via a low voltage cable that runs up the back.

The blocks I used are typically available at the home centers. Mine are products of Pittsburgh Corning. The one on the right is a "full" block of the "Icescapes" pattern, the one on the left is a half block of the "Decora" pattern. Both are end blocks which means that they are fully finished on one end.

Glass blocks make nice diffusers for the sharp edged light from the LEDs and they are virtually indestructible by weather. I thought of having some custom made, a little smaller perhaps or with a hand made pattern or color?

Here is a shot very early morning of two versions of the DIY LED Outdoor Lamp Project on my test pathway. Hard to photograph the way I actually see it but I will keep trying.

Thank you for your interest

George Plhak

diy landscape lamp reading list
a very bright 1 watt diy led garden light - this article
making a lamp from a 2x4
best light at least cost - about testing bright diy leds at home
diy testing of led lamps
diy 1 watt led update
diy garden lamp progress
a shielded low power diy garden lamp

3 comments:

Anonymous said...

Hi George

Just came across your Homemade LED glass lights. Nice and original idea by the way. Could you give us a few photos of the solar side of things? Interested to see how they're powered and controlled.

Thanks

Anonymous said...

Loved it.
Can you share how you made the light circuit that was sitting on the wooden pole?

Thank You.

George Plhak said...

Thank you! To see the details of the LED circuit in the pole (I think this is what you mean?) please see the next article in the series making a lamp from a 2x4. Note the index at the bottom of each of the articles. Also, I no longer use that LED (the one from Princess Auto) as I have found that LED chips of the type described in the article diy garden lamp progress give better light with less power. Thanks for your interest. George