The MIGRO ARAY 4 is the most efficient LED grow light on the market for 4ft x 2ft or 1.2m x 0.6m grow space. Delivering incredibly uniform PAR distribution with 4 LED bars, a remote mountable LED driver with dimmer control.
migrolight.com
The migro aray is well designed, by a well trusted company and its very efficient.
I did also look for phlizon LEDs but they are like 27inch long by 20inch. Which wouldn't give great coverage in a 48inch by 24inch tent
You might find some lesser known LEDs on ebay .. but you want to be looking for white LEDs , not blurple.
You want 240w , actual power draw, to 300w actual power draw
Until you flower you can just switch both switches on both lights to get more light.
But 200w of very inefficient blurple isn't going to produce good results in flower