5730 means the SMD LED component’s dimension is about 5.7mm(L)X3.0mm(W).5730 LED strip light series is hight brightness led strip light. 150ma,50-60lm each led. Ra80 and Ra90 available. DC12V and DC24V vision. 60led/m LED strip light is widely used in hotel, shopping mall, kitchen illumination. The customized length and customized design are warmly welcome.