Power
DC/DC Step-Down converter with 1.2-30 V 5A output
$8.01
1 relay module 5 Vdc 10A (assembled)
$6.87
4 relay module 5VDC 10A (assembled)
$14.31
Box 525 1% precision resistors - 17 values
$11.45
$3.43
Solar Panel Charge Controller - 10 A
$20.03
$6.01
Mini solar cell 2V 200mA
$5.72
$1.72
