The product presents a smooth and a slender curve just like a staysail sailing through a sea breeze. It fulfills the famous saying of Louis Sullivan, “Form follows Function”. It radiates the heat effectively by designing the heat sink pin to get longer as it gets near to the heatsink element. Angle can be easily controlled and fixed to be applied at various environments, and LED COB and the Heat sink are designed as a single module in order to enhance water-proof and make an initial heat radiation from the LED unit.