yeah bro, id bung the second led in, you got to adjust your tent fan(s) direction tho, leds and fans are a tricky thing to get right, the hot air leds emit, its weird.. it doesn't mix with cold air that well, imo its because its a different type of hot air, electronically generated not heat from a element....hard to explain.
So, to keep temps and RH normal I aim a fan upwards from the bottom intake, to push cold air in and up,. then I put a fan at top of tent blowing across the top of the led towards the filter. this keeps the leds cool and pushes the hot air they emit at the filter and out of the tent more successfully.
Then if you got a third fan, just aim that across the plants themselves to rustle them about a bit, keeps RH from getting too high, much needed if your flowering your girls.
Give it a go, ding those fans about, takes time to calibrate but once you've cracked it, no more temp problems and then you can max out with your leds
