about 22 hours ago - 3 comments
Question by : how large must a solar panel be to power a train? If the schematics of a solar train were drawn, what would they look like? Would the train be large or small? Where would the panels be placed? And if so, how large must the panels be to fit the roof? Even
about 2 days ago - No comments
Question by Ashley J: How much solar energy (kJ) would have to be…? How much solar energy (kJ) would have to be transferred to a 145.0 foot length of asphalt highway that is 49.0 feet wide and 25.0 centimeters deep in order to raise the temperature 5.00 oC ?The average density of asphalt is 721
about 3 days ago - 2 comments
Question by : How do I make my own solar panel? How do I make my own solar panels and generate my own power cheaply. The commercial one’s are just too expensive. —————————————— Answer by mugikuyuIts very easy but the entire process is quite lengthy. You will need to purchase some materials and then assemble
about 4 days ago - 2 comments
Question by elrodvoss: What Solar Panel Efficiency would replace Coal? A friend sent me an article that a company called Fraunhofer has produced solar panels that can achieve 41.1% efficiency. Now taking into account the fact that solar do sent work during storms or night and greatly reduced during winters, what % do you think
about 6 days ago - No comments
Question by Jake P: Are there any Universities that have programs about solar energy? I wanted to know if there are any Universities in North America that have programs that teach about solar energy and using it for electricity in a home (mainly installation). —————————————— Answer by Dr. Clandestine:)Many dude, they have a nice supply
about 6 days ago - No comments
Question by Jordan L: Why can’t energy saving light bulbs dim, when used on a dimmer switch? We have recently installed some new light fixtures and did not realize that energy saving light bulbs will not dim, they will only work on maximum power, when the dimmer switch is turned down, they just flicker. Also
about 1 week ago - 1 comment
Question by GorgeousLilThing: I want to conserve energy, Is there anyone out there who knows how to make solar panel the simple way? What are the key materials needed to create a solar panel and the simple steps to assemble it. What would be the desirable size of the panel enough to run a desk
about 1 week ago - 1 comment
Question by : why not people use solar energy for their daily need? I am observing that normally we need electricity for lighting purpose then why not people use solar energy for lighting in each room. —————————————— Answer by DifdiMost people are not millionaires. Solar energy systems equal to what you can get via normal
about 1 week ago - 2 comments
Question by : What is an issue or something interesting about the solar panel technology? I’m hoping to do a science fair project on solar panels. Since energy has been a large issue lately, I was hoping to research on this topic! What are some things that I can possibly do or experiment on? Thank
about 1 week ago - No comments
Question by jayB: Are there any grants for converting homes and or swimming pools to solar energy? my pool is heated by gas.I can’t afford to heat the pool with the price of gas. also I would like convert the houses to solar energy. I need to become absolutely energy efficient with solar energy with
(out of 29 reviews)
about 1 year ago
Review by J. Yoon for Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light Model
Rating:
I can see why there is a dichotomy with the ratings. We purchased two of these for our detached garage. One of the lights gives off a relatively bright light, enough to find one’s way around with ease at night. The other light was not as bright. The light has a hi-lo switch, and even on the ‘hi’ setting, the dud-light gave off only a dim glow. We did not return it for another light because after the hastle of installing this light with the solar panel on the roof, it didn’t seem that important to us. For future purchasers, remember to give it a test run before installing.
about 1 year ago
Review by Vynny for Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light Model
Rating:
Reading from the reviews I wasn’t expecting much from such a low price solar shed light. I went ahead and ordered anyway and I’m very very pleased with the results. The light itself came almost fully pre-charged which aided in not only knowing how bright it would ultimately be, but also was useful in locating a good spot for it in the shed before permanent mounting.
So out of the box you get a
* solar panel with hardwired 16ft cable
* exterior mounting bracket with swivel feature
* interior light and mounting all in one
* all screws etc
* strange L shaped metal rod which appears to serve no useful purpose due to the design of the mounting bracket!
The light itself is super bright for a solar led; we have a small shed at 6′x 8′ and it saturates it with enough light to find even the smallest item or even work in there. I couldn’t say how long the light lasts on a single charge however, but it’s perfect for popping in and grabbing some tool as the day gets longer. The light has a half/full option where the top row of leds can be switched off to increase the duration that the lights last at the expense of brightness – nice touch. There’s also a small red led to indicate that it’s charging and comes with a one foot toggle pull string to switch the light on or off.
My only gripe, which was mentioned in another review, was the connector for the panel to the light was L shaped not straight through as shown in the amazon product pic. This meant making a hole about the width of your finger to be able to push the connector into the shed and then having to silicon it all up to make it watertight. If it was a straight connector, the hole would barely be bigger than the cable itself. A surprisingly poorly thought out design given the rest of the product.
But the rest IS perfect and you cannot go wrong for the price.
about 1 year ago
Review by Dedrah L. Littleton for Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light Model
Rating:
Advertised as having a 20ft cord…at best it’s only 16ft!
Pivot mount for the solar panel is totally useless…very poor design!
There was a 6 inch “L” shaped treaded metal rod included with the hardware with no instuctions on what’s it for! The light works well so far…not real bright but good enough to find things.
about 1 year ago
Review by Mr. Steve W. Robertson for Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light Model
Rating:
I purchased this item for a 10×15 shed. A lot of people of commented on the amount of light this thing throws out so let me start the review with that.
This shed light is powered by 3 AA batteries that get recharged by the solar panel. The solar panel does not provide any direct power for the lights and that is not what it is designed to do. If you expect 3 AA batteries to provide the same amount of power and therefore light as a 120 volt AC shop light you are going to be disappointed in this product, or ANY product that provides light from 3 AA batteries. If you expect it to provide the same amount of light as a flashlight powered by 3AA batteries then this product is going to deliver exactly what you expect out of it. In my 10X15 shed this product delivers about as much light as a night light. The light it emits is an unnatural blue color but it is adequate. It will keep you from tripping over stuff and help you to make out the difference between a lawn mower and a leaf blower in otherwise complete darkness. It is not suitable for performing detailed work and is not a substitute for lighting that would normally require an electrical connection. When used during the day with the shed door open, using this light does not increase the ambient light inside the shed at all- normal daylight completely washes out the shed light. This light is very useful at night.
The product documentation is severely limited but installation is fairly common sense. The screws that come with the unit are inadequate drywall screws and the Phillips heads will strip when you try to drill them into real wood. For some reason it also comes with drywall anchors as if your shed is going to be finished with drywall. If your shed has drywall it probably also has electricity and you wouldn’t be reading this review now would you? The product comes with a large threaded L bracket that is not in the documentation. It looks like it can be used as an alternate mounting bracket but you would have to partially disassemble the solar panel to use it. I threw it in the trash along with the NiCad batteries.
The product comes with 3 AA NiCad batteries. I recommend that you immediately dispose of them upon opening the box and use NiMH batteries. For one, NiCad batteries have a memory effect that modern batteries do not and they are poorly suited to solar chargers due to the charging cycles associated with a dubious power supply. Secondly, the flawed design of this shed light requires you to unscrew the “permanent” mounting in order to change the batteries. While NiCad batteries would have to be replaced annually NiMH batteries should last many years in this configuration and also can supply 6X the amount of power (longer running time) than NiCads.
Another flaw of this product is that the 3/16″ cord running from the solar panel to the light unit has an approximately 1/8″ plug but unfortunately it has a useless L configured plug that will require you to drill nearly a 1″ hole in your shed to fit it through. I’m not sure what was going through the engineer’s mind when this ridiculous feature was added but hopefully the manufacturer will fix this problem if the product is ever updated.
While the LED lights in this product have a very long running time (especially if you get rid of the NiCad batteries as I recommend) most people don’t need to spend hours in their shed. They would go in, fetch what they need, and then turn the light out. This product would be a lot more useful if it provided much more light for a shorter period of time. I think a running time of 1 hour per day is way more than adequate. I would prefer to have 4x the amount of light for 1 hour than I having ΒΌ the light for 4 hours in a shed light.
I purchased this product knowing all the limitations and I am happy with it. It performs exactly as I expected and it functioned right of the box. Some of the design elements are cheap and you should plan on having upgraded batteries and screws on hand before you attempt to install it. You will not want to unscrew the light and reinstall it to swap out the NiCads later, especially if you attempt to use the cheap included screws that will most certainly strip.
The fact that you have to completely uninstall this unit in order to change the batteries highlights another feature that it is missing. It is not portable at all. A great feature it could have had was to be portable- imagine if the power went out and you knew you had a portable light source in your shed that could be quickly snapped out of its housing and used elsewhere. Or if you had some dead AA batteries you wanted to charge with your solar charger. The manufacturers really missed the boat on this one.
about 1 year ago
Review by R. Noel for Designers Edge L-949 10 LED Rechargeable Solar Panel Shed Light Model
Rating:
I purchased this light to put in our outhouse at camp in Upper Michigan.
We do not have electricity at camp and I thought this would be worth a try to get some light. Installed it this summer and it has been working fine since then. On the low setting , 5 LED’s, it gives off enough light to take care of business and even read by. The high setting, 10 LED, is better to read by and plently light to light up the outhouse. I was so pleased with how it work I purchased a second on for the storage shed.