Probably you saw Sun tracking system before; however do you have the urge to challenge yourself to make a Sun Tracking Unit? First of all, get a tiny .7″x1.4″ PC board using the LED3X sensor concept. This circuit uses power MOFSET drivers, which most any DC motor can be used without any modification. You might noticed that the power drivers are good enough of delivering about 50 amps of peak current or even more. The current will increase accordingly to the transistor. This mean the large power MOFSET, 72A when operated in low current, it will eliminates the needed for a heat sink on the transistor. Cool, isn’t it?