Radion xr30 g4 Pro Light used to grow my Pandemic Acropora. ~ 3 years old purchased from my LFS NEW. AB+ was used as the spectrum at ~ 60% to 70%. from a 9:30 am ramp up time to 11am full on. Ramp down began at 8pm with complete shutdown at 9pm. Upgraded to a g5 this week so I am selling this light off. Has the attachment for the mounting arm still on it.