3xLED Book Light, retail $14.99 (http://www.compusa.com...)
Manufactured by Great Point Light (www.greatpointlight)
Last updated 06-21-06

The 3xLED Book Light is just that: an LED book light that clips to the cover of a book and illuminates the pages of that book when you're in a dark room.

The housing is composed of a light blue plastic, and it features three wide-angle white LEDs in a head that swivels a full 360 in either direction. It has a flip-up body that also swivels 360 in either direction, and a clip on the base fits the cover of just about any book you want to shove it in.


The book light is ready to use as soon as you remove it from the package.

Lift the middle portion of the housing up, and clip the base into the cover of a book. On the top of the unit, there is a small pushbutton switch - press & release the button once for high mode, press & release it again to switch it to low mode, and press & release it a third time to turn the unit off.

When you're finished reading, remove the book light from the book, and position all of its moveable components so they line up.

To change the batteries, slide the battery door/clip toward the top of the clip, lift it off, and set it aside.

If necessary, remove and dispose of or recycle the two CR2450 cells.

Insert two new CR2450 lithium coin cells into the holders, button-side (-) negative facing down.

Slide the battery door/clip back on; slide it until it locks into place.

Due to the way the product was constructed, I am not able to obtain a current usage measurement for you.

This product is meant to be used as a reading light in a dry area, so I won't try to drown it in the toilet, bash it against the floor of a concrete patio or a steel rod, let my housemate's kitties go wee-wee on it, run over it with a 450lb Celebrity, or perform other indecencies on it that a regular flashlight might have to have performed on it. So this section of the web page will be significantly more bare than this section of the web page on a page about a flashlight.

Most of the remaining content will just be the two photographs and the spectrometer plot below.

I tested it with a book about used up old insolators (17"W by 11"H when open), and although it did illuminated the pages adequately, I'd prefer to use it in a book with smaller pages, such as a paperback novel. I do not have such a book though (they were left behind after I moved on 10-11-04), so I cannot test the book light in that manner.

According to the packaging, it can be used to see "books, maps, laptop keyboards, and more".

The unit folds flat for easy storage in a purse or bag, and easy transport in a briefcase or pants pocket.

Beam photograph on the test target at 12".
Measures 5,090mcd (low) and 7,850mcd (high) on a Meterman LM631 light meter.

Photograph of the unit lighting the page of an old book.

Spectrographic plot
Spectrometer plot of the LEDs in this book light.
Ocean Optics USB2000 Spectrometer on loan from TWO-CUBED.

Test unit was purchased at a CompUSA in Sacramento CA. USA on 06-14-06.

UPDATE: 00-00-00



    MANUFACTURER: Great Point Light
    PRODUCT TYPE: Reading light
    LAMP TYPE: 5mm lensless white LED
    No. OF LAMPS: 3
    BEAM TYPE: Wide flood
    SWITCH TYPE: Pushbutton high/low/off on illuminator head
    CASE MATERIAL: Plastic
    BEZEL: Plastic; plastic cover protects LEDs
    BATTERY: 2x CR2450 cells
    CURRENT CONSUMPTION: Unknown/unable to measure
    WATER RESISTANT: Light splatter-resistance at maximum
    ACCESSORIES: 2 CR2450 lithium coin cells
    WARRANTY: Unknown/not stated


    Star Rating

3xLED Book Light * http://www.compusa.com...

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