Surprisingly good solar path lights

RJM62

Touchdown! Greaser!
Gone West
Joined
Jun 15, 2007
Messages
13,157
Location
Upstate New York
Display Name
Geek on the Hill
I stopped at Tractor Supply earlier today to pick up an extension cord, and I noticed they had these lights for $3.99/each:

http://www.tractorsupply.com/en/store/westinghouse-demi-canterbury-solar-light-black

The thing that caught my eye was that they were rated at 4 lumens, which is about twice what the ones I'd been looking at at Ace hardware were rated. I picked up three of them because my stone steps outside are downright dangerous at night during a new moon.

If I know I'm going to be back after dark or if I'm expecting guests, I just leave the porch light on. But sometimes I wind up getting home later than I'd planned, or sometimes guests stop by unexpectedly; and up here, when it gets dark, it gets DARK. So I wanted a little bit of lighting for the front steps, at least, so no one falls and breaks their neck. When I saw these, I figured, hey, at $3.99/each, I'll take a chance.

I must say, I'm very impressed -- especially considering the lights had only a few hours to charge. Here's a picture of one of the lights, with no other lighting, and taken without a tripod (because I was too lazy to get it out of the car):

path_lights.jpg


The lighting is sufficient to safely light the steps, but I'm going to pick up two or three more lights tomorrow to fill in the areas shadowed by the shape of the stairway. I actually should have bought more while I was there today, but I never expected that the lights would work this well.

The other nice thing is that because there's no wiring, I can just pull the lights up and jury-rig PVC extensions onto them in the winter. The pole is just a hollow piece of plastic with a pointy insert on one end, so I can just replace it with a piece of PVC cut at an angle on the bottom (to make it pointy) and raise the lights over the snow level in the winter, if I like.

It's not often that I'm pleasantly surprised by a product any more, especially one this inexpensive.

-Rich
 
An acquaintance who owns Taylor Airport (grass field, T14, http://t14airport.com) has some of these style of lights to mark the runway. Claims they do a pretty good job marking the edges.
 
We have used solar lighting on the fence around our hotel's pool for three years.

Although they work well, they are not long-lasting. We replace about half of them every year.
 
We have used solar lighting on the fence around our hotel's pool for three years.

Although they work well, they are not long-lasting. We replace about half of them every year.

These appear to use a standard AA Ni-Cad battery. I wonder if that's what wears out?

-Rich
 
The local Dollar Tree store had similar solar pathway lights for sale last year..... A buck a piece.. I got 20 of them.. One was DOA out of the box,,,,, The other 19 are still going strong altho when it's -30f they don't work very good..:no:....

Mine are about 3/4 as bright as yours but for a buck a piece, I ain't bitchin..:no::nonod:
 
The driveway at the new place is lined with the cheap ones from Harbor Freight. They work well. Looks like a little runway.

I told Karen that I'm on the hunt for blue ones. Or real taxiway lights. ;)
 
These appear to use a standard AA Ni-Cad battery. I wonder if that's what wears out?

-Rich

Bingo. I replace the batteries along the path across the front of our place about every other year. I have some lights that are about five years old, but the plastic pane over the cell deteriorates in the UV and "fogs" over cutting down on the light available to the cell. Cells have a fixed life as well, as eventually the electrons get knocked off the substrate below a certain concentration and there's nothing left to transfer.
 
About a week into owning our new home three years ago, I put some of these in place to line to driveway and walkway to the front door. Then the neighbors across the street got some, then a few houses further down got some.

A couple days later, my lights were being knocked over (presumably by the teenagers). As the functionality started to wane I pulled the ones that weren't working and moved them to space them evenly.

I thought it OK to mow and trim very carefully around them, but inevitably another would bite the dust.

I found out that the stores don't carry the exact ones for replacement.

Still undeterred, I made plans to put PVC piping at the intended locations embedded in the ground so I can quickly pull them before yard work and find the locations when done, but I hadn't gotten around to it.

I finally pulled the plug on the last 2 that barely emitted the hue of a sickened firefly.

Will I do another set. Probably. But this time, I will buy 1.3x as many as I need.
 
Here's a picture of the steps, illuminated only by the Solar LED lights.

path_lights2.jpg


They serve the purpose, I think.

-Rich
 
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Still undeterred, I made plans to put PVC piping at the intended locations embedded in the ground so I can quickly pull them before yard work and find the locations when done, but I hadn't gotten around to it.

Metal electrical conduit works better and isn't much more expensive for a stick of it, if you already have a pipe cutter.
 
Those do seem to work nice. I have a few that are ok, maybe I will upgrade to these.
 
Jaybird,

If there's a Batteries Plus in your neck of the woods give them a try. They have batteries to fit most anything.
 
I have a funny story about solar lights and my Dad. Dad was a jack of all trades but there were a few simple items that he just didn't comprehend.

I used to go to Dad's house every Saturday morning to have coffee and just chat. In one of our chat sessions he was complaining that some of the solar lights he had installed the year before were very dim.

I asked him if he had checked out the batteries and they maybe they needed to be changed. He looked at me with a smirk and said Timothy, these are solar powered and do not have batteries in them. I then explained the process and we decided that he needed to invent lunar powered lights instead. We laughed a bit over that one.

Dad has been gone 27 months now and I still miss him every day. He was my best friend.
 
I have a funny story about solar lights and my Dad. Dad was a jack of all trades but there were a few simple items that he just didn't comprehend.

I used to go to Dad's house every Saturday morning to have coffee and just chat. In one of our chat sessions he was complaining that some of the solar lights he had installed the year before were very dim.

I asked him if he had checked out the batteries and they maybe they needed to be changed. He looked at me with a smirk and said Timothy, these are solar powered and do not have batteries in them. I then explained the process and we decided that he needed to invent lunar powered lights instead. We laughed a bit over that one.

Dad has been gone 27 months now and I still miss him every day. He was my best friend.

Nice.

When my oldest sister got married the second time, my dad was having trouble with his hearing but hadn't imagined he needed hearing aids, yet. He worried about what to do when it was time to say, "Her mother and I do."

What happened was, the first time the minster paused, my dad thought it was time and stood up, cleared his throat, and loudly said, "her mother and I do," just after the minster said, "will you please bow your heads in prayer..."

I am convinced you remember the things that go wrong, from weddings and none of us let him forget that one. We talked about it every time we all got together and he would get red around the neck and start defending himself all over again.

I miss them both...
 
Cells have a fixed life as well, as eventually the electrons get knocked off the substrate below a certain concentration and there's nothing left to transfer.

??? You lost me there. Say again? How often do we replace solar cells on the ISS? Or satelites in geosynchronous orbit? We don't, and they don't wear out like that.
 
??? You lost me there. Say again? How often do we replace solar cells on the ISS? Or satelites in geosynchronous orbit? We don't, and they don't wear out like that.

To answer your question, ISS batteries have a design life of 6.5 years and are replaced, actually. ;)

( http://en.m.wikipedia.org/wiki/Electrical_system_of_the_International_Space_Station )

The vast majority of rechargeable cells that "go bad" are caused by bad charging (cheap) circuits. Most consumer electronics trade faster charging times for less overall battery life.

Most satellites still use NiCD because when properly charged, they last a bloody long time and their behavior is well-known because of massive NASA test data.

That said, they do die on orbit eventually. I remember a number of years in the 90s where a significant number of AMSAT birds in LEO would reboot every time they came around into sunlight and the solar panels fired their systems back up.

Some dedicated control station folks would dutifully send uplink commands to put them back in a useful non-failsafe mode whenever their telemetry showed enough charge on the batteries and sun angles supported full power ops, so folks could use them. Then shut them down or let them failsafe again on their own as sun angles changed again with the seasons and folks would wait months to see if the bird survived the darker months. They'd announce news via their mailing list.

LiOn and ilk also eventually wear out and hold less charge over time. Most laptop battery packs have a way to query the charge controller in the pack as to how many "full charge cycles" they've had. The manufacturers publish a spec for how many cycles before X% of capacity loss should have occurred.
 
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