To solve this problem, a Japanese manufacturer provided a lighting tool called LightWedge 2.0. It looks like a bookmark made of plastic, but with a giant piece of organic glass. The side of the LED lights will emit a soft light, through the plexiglass to illuminate the entire page of the book, the display effect is similar to a Kindle like paper books, and will not bother other people.
LightWedge2.0's volume weight is not large, measurements are 165 × 225 × 11 mm, weight 220 grams, can be used as a bookmark in the book, but also very easy to carry. The built-in lithium battery can support 15 hours of reading. When the battery runs out, it can be connected to the computer with a USB cable to charge.
The KSPOWER brand 101W~150W DC adapters is one black or white color constant voltage mode, accepts universal input 100-240V AC voltage and provides the complete power transformers solutions covering the single output voltage ranging from 5Volt to 36Volt and the output current ranging from 100ma to 12500ma. The universal ac adapter follows high quality level VI energy efficiency and meet IEC/EN/UL 62368-1 safety standard, with UL/cUL CE FCC KC KCC TUV GS RCM CCC SAA C-Tick UKCA RoHS CB PSE PSB safety mark certificates export for global countries. The ac to dc 12v adapter is Class I and Class II power designed with the standard AC outlet of IEC320-C14, IEC320-C6, IEC320-C8 and offers 3 years after-sale customer service. The dc 12v adaptor accepts various dc connector size for various audio/video and I.T.E applications and protections for short circuit, over load, over voltage and over temperature with green led indication light for power on.
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Shenzhenshi Zhenhuan Electronic Co., Ltd , https://www.szzhpower.com