1.Black background with aluminium frame, durable and easy to delivery.2.Sheet: high transparency ultra-clear glass or acrylic sheet.3.Light source: LED,2-side lighting.4. High-hardness writing board, you could write any characters and design graphs with a fluorescent marker pen optionally.5.So low power consumption save energy and environment firendly.6. High quality AC/DC adapter with SAA,CE,UL approvals, series plug like Euro plug, AU plug, UK plug is available for all over the world.7. Portable, set up easily, useful in many fields, indoor and semi-outdoor.8.Advantage:energy saving,environment friendly, lightening symmetrical, longer life time9.RGB ( red, green and blue) LED brightly Colors ,2-side lighting.10. Remote control, twice brightness, Original 32-key remote control device patent.Item No.HD35DXHD46DXHD57DXHD66DXHD68DXProduct Size30X50 cm40X60 cm50X70 cm60X60 cm60X80 cmWriting Size25*45 cm35*55 cm45*65 cm55*55 cm55*75 cmInput powerAC110V-220V/ 0.7-1AAC110V-220V/ 0.7-1AAC110V-220V/ 0.7-1AAC110V-220V/ 0.7-1AAC110V-220V/ 0.7-1AOutput powerDC 12V /500M ADC 12V /500M ADC 12V /500M ADC 12V /500M ADC 12V / 1 AInner Packpolybag/foam/bubble wrappolybag/foam/bubble wrappolybag/foam/bubble wrappolybag/foam/bubble wrappolybag/foam/bubble wrapInner package G.W/N.W2/1.55 kgs2.8/2.2 kgs3.8/2.9 kgs4.2/32.kgs5.2/3.9 kgsOuter pack QTY10pcs/ctn10pcs/ctn5 pcs/ctn5 pcs/ctn5 pcs/ctnOut pack size62*62*38 cm74*61*48 cm81*31*58 cm71*31*68 cm92*31*68 cmTotal G.W/N.W22 / 15.5 kgs30 / 22 kgs21.5/15 kgs22.5/16 kgs29/20 kgsMOQ50 pcs50 pcs50 pcs50 pcs