Trouble-free:upgraded version self-adhesive back with adhesive,the 2nd generation more strong than old version, never mind adhesive does not stick well CUTTABLE AND LINKABLE-Every 3-LEDS cuttable without damaging the rest strips, according to your requirement HIGHT OUTPUT-Completely smooth and even light spread, solving the uneven luminous problem with a chain of fluorescent tubes SAFE TO USE-LED strip working voltage is 12V. extremely low heat. It is touchable and safe to children REDUCE RE-LAMP FREQUENCY-Lifespan is over 50000 hrs. Save effort and maintenance costs on changing lights frequently