about 2 days 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 weeks ago - No comments
Question by : What percentage of wind energy does a wind turbine convert into power? —————————————— Answer by RudydooHey Henry, good question. Actually, there has been quite a bit of work done in this area. Wind turbines this day are basically around 33% efficient. There are variations of course, the more blades a turbine has,
about 3 weeks ago - No comments
Question by malice: wind power; rational energy into electricity? how does wind power work? i know that the turbine blades capture wind energy and start moving, they spin a shaft that leads from the hub of the rotor to a generator The generator turns that rotational energy into electricity. but how does the generator turn
about 3 weeks ago - No comments
Question by : does sunlight in winter have the same amount of power for a solar panel? if you have a solar panel perfectly angled (i.e. perpendicular to sun based on time and season) will it in theory produce the same amount of power regardless of season? —————————————— Answer by iuliuromanulUnless you are ON the
about 3 weeks ago - No comments
Question by Leo: How Does Wind Power Work To Create Home Electricity? —————————————— Answer by EJWindmills have 3 blades connected to a rotor and a generator. The blades begin to turn when wind speeds reach 4 meters/second, due to low pressure beneath them. This pulls the blade toward it, activating the rotor, the generator, and
about 4 weeks ago - No comments
Question by John B: how to give a steady supply of water without the use of manpower, animal, wind, solar power, electricity, heat? supplying water to the top of a small hill with water from a pond NEAR the bottom. —————————————— Answer by billrussell42I do not think there is anything left from your list, so
about 1 month ago - No comments
Question by Q&A Chick: What majors to pursue for energy/solar power job? I’m looking for different majors to pursue for college and, for fun, I decided to stray away from the ordinary boring ones. I figured solar/energy-saving power is probably going to become a large business, but what majors are there to pursue? I’d just
about 1 month ago - 2 comments
Question by : Does it Cost More To Use Wind Power Or Electricity? I’m In Environmental Earth Science and have to do this project on wind-power, So I was wondering does it cost more to use Wind-Power (Like Wind Farms) or electricity. Which one would save more money, && which one would be better for
about 1 month ago - 1 comment
Question by dedilus machine: Is there a small solar panel available that would provide enough power to run a small space heater or fan? I live in a townhouse and the association doesn’t allow roof top solar panels or anything that is visible from the street. —————————————— Answer by jungleempressyes, look on line Answer by
about 1 month ago - No comments
Question by Cathal M: I am looking for an energy saving lamp 9watt that fits into a linear halogen fitting? The linear halogen lamp is 150watt, have tried all over the net, cant get the lamp separate to the fitting? —————————————— Answer by Willy rI doubt you can ussaly the lamp has to have a
about 2 years ago
We received the wrong lamp. We have returned the lamp to the sender. We wanted the version
that had the new high power LED’s with the dimmer arrangement. The old version did not give
enough light. We do not want to reorder at this time.
Maryjane E. Scharenberg
Rating: 1 / 5
about 2 years ago
This is the perfect little lamp for that dark corner near your PC. It does its job beautifully and competently and then folds into obscurity. If you have need for light and are cramped for space, this is the ideal lamp for you. It can be stretched, manipulated and folded to find every dark corner of your work space, and then folded back into the small area the base utilizes.
Rating: 5 / 5
about 2 years ago
For the price ($164), I was expecting more. Truth is the 6 LEDs give good light only at highest power setting. Lower settings are useless. Definitely overpriced for what it does. Considering I would loose $30+ by returning it, I won’t (though thought crossed my mind).
Rating: 3 / 5
about 2 years ago
I had some apprehension about such an expensive desk lamp, but I am glad I took the plunge. I was looking for a non-fluorescent articulating desk lamp. Most articulating lamps need constant fiddling/tightening, and don’t hold their position very well. The Z-Bar stays right where you put it. No fuss, no tightening or loosening. It also has a tiny footprint. I am using the included desk clamp to attach it to the desktop hole made for wires.
The lamp puts out good light. It doesn’t irritate me like fluorescents, and it is almost soothing (I purchased the “Daylight” model). The six individual lights do create a slight six shadow effect. If you can, set the light so that it illuminates from the opposite of your dominate hand (if you are right handed, have it shine from the left so as not to create a shadow from your hand onto your work.
The Z-Bar puts out good light wherever you shine it but it does not cast much ambient light, and the work area is somewhat small (read: if you are looking to light up a room, this is not what you want). You can raise the lamp higher for a broader area.
Bonus: this sucker does not get hot (pretty warm, but not hot). At any time you can touch the lamp without fear. It also uses only 9 watts at full brightness (compared to, say, 60 watts for a normal incandescent).
My only other complaints are niggling. Turning the unit on/off requires 4 presses of either the + or – buttons (though the buttons are of good quality and easily accessible). Also, it is a contemporary looking light. Not my style, but I will accept its function over form. Despite the look, it is fairly non-obtrusive, and it goes with pretty much any modern-day office gear (I got the silver).
This is a great and functional product of high quality. After a childhood of being hit on the head with a burning hot desk lamp that wouldn’t stay put, I feel that I am finally beginning to see the light (or is that the result of repeated head trauma? … ). I recommend this product! If you spend a lot of time at work and hate fluorescents, you may wish to spend a bit of scratch on decent lighting. It’s a quality of life issue.
(side note: I originally bought the mini-high power led desk lamp. It was nice, but too dinky, so I returned it. I would only recommend that model for a very small work area.)
Rating: 5 / 5
about 2 years ago
This product arrived the next day. It came with instructions for use. It was very easy to assemble. The lamp is very well engineered. It fits into virtually any space and provides excellent lighting for my computer. It is light and portable, so I can move it around since I use it with my laptops. I am thinking about buying another one. Good price for the quality.
Rating: 5 / 5