ITEM NAME:8pcs x 30*30*15mm Aluminum heatsink Heat Sink Chip for LED IC Power Transis I3O7 8pcs x 30*30*15mm Aluminum heatsink Heat Sink Chip for LED IC Power Transis I3O7 100% Brand New never used Materials : Aluminum Color:Silver Size:30 x 30 x 15MM /1.18 x 1.18 x 0.59 inches The Quantity of Blade : 6pcs Used for: Various mini DC converter circuit board, LED, Power IC and Transistors, etc Weight: 13.7g per piece package included: 8 x Aluminum Heat Sink for LED and Power IC Transistor Module PBC Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Used for: Various mini DC converter circuit board, LED, Power IC and Transistors, etc. Materials : Aluminum. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.