5730 Constant Current LED Strip Lights,Normal DC24V constant voltage power supply is enough, The IC will convert DC24V to Constant current for the LEDs.It can be made of 70led/m or 126led/m or 140led/m;It can be with Temperature Sensor or without Temperature Sensor;For the one with the temperature sensor,when the temperature of the strips gets higher,the current will go down to protect itself and ensure long life span.