Ran out of headroom on the 200 watt panels? The EVO 4-80 is the next rung up. It pulls 265 watts and pushes 725 micromol per second. We hang it over the beds where tomatoes, peppers and chillies have grown in thick and started fighting each other for light. The lens keeps that 90 degree beam on the plants, not the tent walls.
No fan. The aluminium body just sheds its heat, so nothing clogs, nothing fails, and the room stays quiet. Efficiency holds above 3 micromol per joule, sealing is IP65, and the warranty runs 3 years. The connection cable you buy to suit.