Partly triggered by the T8 thread, I think I it's time to replace the T5's of my 2-year old Proxima 175 (70x50 cm). Not being able to decide about LEDs I thought I'd just go with the same original Eheim Daylight T5's (x2) but...they are discontinued. There are so many options out there but can't find any with the same specs. They are 549 mm, 24W, 6500 K, 1850 lumens each. Any suggestions? How important is it to have the same Kelvins and Lumens? If I go for 6000 K and 1800 lumens, can I expect the same result?