FD-3000 in a nutshell • 250W covers 3x3ft tent • 2.8 µmol/J — efficient • Foldable — ships flat • Built-in driver — no assembly • Silent passive cooling • Daisy chain up to 20 lights • Full spectrum + 660nm red • ETL, CE, RoHS certified One light. All stages. No noise. No waste. 3x3ft 4x4ft coverage,enough power high efficacy,2.8umol/J,electricity saving foldable,save shipping,compact pre-assembled,built-in drive,3-min setup no noise,silent, passive cooling daisy chain,master slave, scalable full spectrum led grow lght for all stages Feature What It Means For You 250W / 3x3ft Full tent coverage. No weak corners. 2.8 µmol/J More light per watt. Lower electricity cost. Foldable Save on shipping. Store flat. Built-in driver Open box, hang, plug in — 3 minutes. No fan Dead silent. No movin.