Buy Softech- Natural Light LED Multi-function Desk Lamp Black

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List Price: $199.99
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I have been searching for a nice LED lamp to illuminate my late night studies for a while now. I wanted a lamp that was bright, environmentally friendly, and aesthetically pleasing. This lamp was everything I was looking for and much more! The base is heavy and wide enough for stability, yet still small enough to fit on my small desk. The touch sensitive buttons are responsive and gives the lamp some cutting edge technology flavor. The light can be rotated 180 degrees and can be bent at two points. This gives the lamp a lot of room for light angle and height adjustment.

The four light types are an excellent touch. I personally love the reading light for my late night study sessions. It gives you a sense of daytime and helps keep your focus up. The math light is slightly blue and very bright, which is perfect for crunching some numbers or drawing organic chemistry reaction mechanisms. The relaxing light is very warm and gives you a mellow feeling. I also love how you can adjust the light intensity in addition to the light type. This gives the lamp much room for adjustment for those of us who are extra picky about light sensitivity. The 1 hour auto-off (sleep)button is also a nice touch. When the lamp is folded down, you can use the night light mode and it works fairly well.

My only small gripe with this lamp is that it is made out of a hard plastic. While very nice looking and light weight, I would have preferred some sort of metal plating to make it feel its price.

Overall I am very pleased with this lamp and might buy another one in white for my sister's room.

UPDATE: March 13, 2013. This lamp is still working almost 16 months later and I am very happy that I purchased this lamp for my late nights of studying. All the LED's are still functioning and the touch sensitive controls are still working just fine.

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This a a review of the Softech Diasonic DL-90 LED Desk Lamp. First off here's a more complete list of it's specs.

The lamp has a base that is about 172mm square. The main arm with the light array is about 350mm long. The supporting arm is about 450mm long with both arms about 42mm wide.

The LED array consists of 27 LEDs in 9 rows spaced approximately 25mm apart. There are 3 LEDs in each row. The center ones are very warm yellow and the two outer rows are intense white, bordering on slightly bluish at their brightest setting. A frosted diffuser protects them from prying fingers and also helps to distribute the light more evenly.

Different color temperature settings can be achieved by varying the intensity of the white and yellow LEDs in different combinations. In Bedtime mode only the yellow LEDs are on producing a very warm yellow light of about 2300K (Kelvin). In Relaxtion mode the yellow LEDs double their brightness compared to the Bedtime mode, but with the white LEDs on as well which results in a brighter, whiter light of about 3300K. Reading mode dims the yellow LEDs slightly and increases the brightness of the white ones producing the type of daylight white one would see on an overcast day at midday, about 5500K. Study mode reduces the output of the yellow LEDs to their lowest brightness while simultaneously increasing the brightness of the white LEDs. This produces the brightest and whitest light. A very intense cool light, bordering on slightly bluish, which looks to me to be about 6500K to 7000K.

The approximate brightness at the lowest setting, about 400mm distance from the lamp, in the various modes is about:

500lux in the Reading mode

600lux in the Study mode

300lux in the Relaxation mode

50lux in the Bedtime mode

The brightness level increases by approximately 150lux for the next two brightness levels and approximately 100lux for the last two levels in all settings. This means that in the Study mode the brightest setting will produce a very bright 1100lux.

The red LED on/off switch is on when the lamp is off and plugged into the wall outlet. It switches off when the lamp is turned on, and blinks on and off once the 60 minute count down timer has been activated.

The main arm can bend only a degree or two backward from its 90° upright position, and about 40° forward. The upper arm which carries the LED array can bend upward about 50° from it's position parallel to the desk it's on. And can bend all the way forward until it's parallel to the supporting arm.

The whole unit can be rotated 90° on its base in either direction from the center position. Unfortunately the main arm with the LEDs cannot be rotated on its axis in order to direct the light either towards or away from you as one can do on the Koncept Light Bar.

In fact my final choice for a decent LED desk lamp boiled down to the Koncept Z-Bar Mini High Power Adjustable LED Desk Lamp Daylight White Illumination Silver and the Softech DL90. I chose the latter due to its greater lighting options, and liked the flexibility of being able to change not only the lamps brightness, but also it's color temperature to suit both my mood and needs.

I love the fact that LEDs consume so little power for the disproportionate amount of light that they produce. While it's true that they are much more directional than both incandescents and CFLs, Diasonic have designed their diffuser well as this results in a 1.5 meter circle of light around the base that is obviously brighter at its center, but still quite usable up to the edges.

As mentioned above, the only negative of this lamp is that the LED array can't be swiveled on its axis. All in all, even with that small negative, I am very happy with my choice and recommend this one very highly to anyone looking for a decent and flexible LED desk lamp.

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This lamp has great options for getting exactly the color and intensity of the light you want, but you cannot rotate the bar with the LEDs to point the light towards the page and away from your eyes. You can swing the bar up and down, but you cannot rotate it. This makes it very hard to avoid the harsh glare of the LED bulbs.

Also, a USB port on a lamp is a great idea, but the USB port only provides 0.7 amps, so iPads and smartphones will charge very slowly (the Apple iPad charger is 2.1 amps).

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This lamp is great overall! It's very adjustable in terms of shades of lighting and lighting intensity. It also has many positions to place the light in a great spot, with one exception. The arm that houses the LEDs is unable to rotate or swivel in a fashion that allows the user to aim the LEDs away from one's field of vision. In terms of not causing glare on your reading material, it's awesome; but forget worrying about having glare on paper when you have the LEDs themselves lighting up your eyeballs! It's similar to having a lamp without an adequate lamp shade, or walking outside on a sunny day in San Diego without sun glasses. This issue may be resolved by extending the roofing of the LEDs downwards by 1/4" or so, or just allowing the bar of LEDs to swivel away from the user's line of sight.

My suggestion to improve this product: Include an add-on piece to the lamp that extends the roof of either side of the lamp. That way, it would act similarly to using a visor when driving in a car. It doesn't need to be a giant visor, just a piece that can extend the roofing about 1/4" 1/2". This doesn't require redesigning the shape of whole product, just a few notches to slip in the visor.

I have adjusted mine to lean and angle lower than my line of sight, but this is somewhat of an annoyance if I need to use my computer at the same time because the lamp is now obstructing my vision to the computer monitor. If you have a higher sitting desk, or if you're sitting lower than the height of the lamp, the LEDs can be an irritant as they can be intense on the peripheral vision.

Aside from this single gripe (which can be made for almost all lamps), this particular lamp is sleek and the touch control pad is responsive. I enjoy all the different shades and intensities of light and I'm the type to be very picky about lighting. Good lamp.

I'd buy it again (currently $149.99) considering the quality of the lamp and how long it's supposed to last. It is mostly plastic, but that's fine. It's not like I need it to hammer anything it's glossy, sleek, and stable, while most importantly, its main function does a beautiful job of lighting up my study material.

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Edit:

After a bit of use, the flaw in this lamp isn't as bad as I made it out to be. Depending on the lamp placement and angle, the position is sufficient for my needs when studying at my desk. Having the lamp set beside my monitor and with the arm pointing towards me, but angled down, the LEDs are blocked from sight and my study material is lit up enough. Although, because of this position, there is some glare along the curve of my textbook. I'll upload a picture to give you a better idea (although the glare is not visible on camera weird!).

I also noticed that after many hours of studying, one color of lighting can give me a headache if I'm studying with no other additional lighting in the room. I just switch from math mode to reading mode and it gives my eyes a soothing feeling. Awesome! Loving my investment ;)

To Softech: I still recommend extending a roofing piece so that the LEDs could be aimed at the reading material without irritating one's eyes.

4.5/5.0 stars!

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I just got my Lamp a month ago and I love it! I spend alot of time working at my lap top and reading in bed. I have always been sensitive to office lighting and the different levels of light this lamp provides don't bother my eyes at all.

I live in NYC and our winter has been terrible and dreary. Since I have been using my new lamp I swear I'm in a better mood. I read something on their website about it being just like sunlight, and I believe it. I love the fact I can charge my phone by plugging it into the lamp, and the night light and timer features have me thinking about buying another for my night stand. My new lamp is the coolest thing in my Apartment lol