... . 2. Wide beam angle: 120 degree 3. Unique heat dissipation device: thermostatically controlled fans to keep LED light cool. 4. Built ... .2. Wide beam angle: 120 degree 3. Unique heat dissipation device: thermostatically controlled fans to keep LED light cool. 4. Built ... water into the light. Classical Design,Widespread Use,Indoor for Home LED Aquarium Lighting Fixture,for LPS,Reef,Fish,120W