It is 56, 3 watt crees, 24 cool white and 32 royal blues with 40 deg optics " Which are to hot". They are screwed on to the heat sink with a lil heat past on the back of each led. I origanaly only put one fan on them but decided to add another to each heat sink. Rapid led said that as long as it does not get over 125 deg all is well. Now with 2 fans on it does not even get close to getting hot. They are dimmable and the drivers are from rapid LED. which drive 14 LED a piece With a 7 or 10 or 12 hour dawn to dusk setting.