I agree check the bulb and transformer. MH is for the veg cycle and HPS is for the flower cycle. To different bulbs MH bulbs are fat, short and have a big middle. HPS lights are long and thin compared to MH.
Zandor Reviewed by Zandor on . A Simple Question The lights that are used in the beginning,MHS lights,do they turn themselves on and off every 5 minutes or so without a timer?Or do we have a ghost? We do have a ghost I know that much... Rating: 5