So yesterday my new HLG 225 came in. Thing is sick. But in smaller tents, it runs hot as hell. Even with two oscillating fans going and proper ventilation, I got up this morning to water them and it was 90 degrees in the tent. Luckily this thing has a dimmer switch and now it runs way less hot. I’ll probably mess with it some to get my desired brightness + temp.
Also, one of my two girls started showing her first pre-flowers. I’m so proud of her 
You can put the Driver on the outside of the tent. Use 14 or 16 gauge solid core wire. This will also help with the heat.
I saw someone say that on Amazon but how would I even do that? It’s soldered to the QB? Or is it removable?
I only really messed with the dimmer switch this AM.
Mine isn’t attached to the aluminum heat sink. There is two bolts and nuts that attach mine.
When I have one driver in the tent I had a small fan I picked up at Walmart and had it directly blow over the driver. 
