Heat sink and lighting apparatus having same

A lighting apparatus comprising:

• a light source module including at least one LED package and a substrate having the at least one LED package mounted thereon;
• a reflective unit including a forward hole having an open front and receiving the light source module therein such that the LED package is disposed toward the forward hole;
• a heat sink including a heat radiation plate having the light source module and the reflective unit mounted on one side surface thereof and including a heat radiation hole formed in a central portion thereof, and heat radiation fins provided on the other side surface of the heat radiation plate and including a plurality of first heat radiation fins radially arranged in a circumferential direction and a plurality of second heat radiation fins having a length shorter than that of the first heat radiation fins and radially arranged between the first heat radiation fins;
• and
• a cover member mounted on the forward hole of the reflective unit so as to protect the light source module.