個位師兄們LED問題～

最近Hobbyking有推出防止熱力在12v電路上做成power lost的Switch Mode Regulator，對一向只識用，而唔理解Regulator使用原理得啖笑嘅ching，可去看一下。但此regulator因沒有housing金钃外縠防止電波干擾，FPV機不適用，

http://www.hobbyking.com/hobbyking/store/__52861__12V_3A_UBEC_2_5S_LiPo_6_23v_.html

Good things really do come in small packages and this 12v 3A UBEC is no exception to that rule. With high efficiency switch mode helping to provide better heat dissipation compared to linear voltage regulators and a shielded PCB design and output EMF coil helping to provide a stable and low noise voltage output, It has all the functionality of a top class UBEC but wont break the bank. This UBEC also features built-in reverse polarity protection for added peace of mind. What more could you ask for in a 12v output UBEC.