Google ChilLED Tech lightning made by hand in Washington state and are the best lights I've ever used hands down. Huge buds. Great 500 watts at the wall outlet not this equivalent to. These lights are commercial grade and amaze me. And I've used all the big name lights. HLG comes close but not...
The number one killer for noobs is over care and water. Let the pot dry out before watering again. Theb over feeding. You don't have to feed every rime. I skip 2-4 days between feeding. Watering water feed, water water feed with good run off