32X27MM LED Heatsink Aluminum Base Radiator For 1W 3W 5W High Power LED Cooler Sunflower UFO Round PCB Radiator LED Lamp DIY Plastic bubble radiator diameter 32 inner hole 20MM peak 27MM LED radiator Purpose: LED bulb for heat dissipation Installation: fixed on a small energy aluminum substrate, can be used for auxiliary heat dissipation of plastic bulb lamp, efficiently rising the life of LED lamps Features: high warmth dissipation quality, large hole in the middle, tapping screw can be quickly installed lamp plate Surface treatment: aluminum