I have a NICREW SkyLED Plus for Planted 48", it gives the best color for viewing and enjoying the fish of all my lights except for a spot light I have for one of my small tanks, and the plants seem to be doing ok. It is on my tall 60gal. It has a narrower frame than some of the other models and doesn't seem as robust. It has about 10mm of sag in the middle. The Nicrew ramp timer seems to work ok on this one. This one is 6 months old.
I also have the 48" Nicrew ClassicLED G2, but an older model, 2 years old. I struggled to gets sags growing at the bottom of the tall 60g, 26" tall, with this light, but it is now on my 75g which is 20" tall, and the same sags are doing better than before. My Ludwigia and Echinodorus are growing well with this light. This light seems more robust than the SkyLED. The model I have has two separate channels for the white and blue and requires the two channel ramp timer which doesn't have as many ramps as the other systems. I have also tried using a single ramp timer before the control unit, which works but you cannot ramp the light. When the ramp timer is dimming the light when you get near the end of the ramp, ie the light just turning on or off it causes the light to flash, it ramps nicely till a point then you get a few flashes before it goes off. The flashes do bother the fish so for this tank I have a more abrupt ramp which prevents the flash from occurring. The biggest issue with this unit is that the color is definitely blue and is missing the reds and yellows so the fish do not look as nice.
I also have NICREW RGB Plus 30" on a 20 gallon long. It is on the daily color cycle which does seem to work for both the fish and the plants, but the tank is only 11" deep so it really doesn't take as much. I like the changing colors most of the time but sometimes it can be frustrating towards evening or morning. Also the timer circuit in the unit is very inaccurate. The cycle seems to lose or gain time so I have to constantly reset it. It only fully turns off for about 2 to 4 hours a day but the evening and morning the light is dim. Its kind of picky to work with, I don't care much for the IR controller. Doubt it would be to the task on a larger tank. The construction of this lamp is similar to the G2.
Just my experiences with the NICREW lights. When choosing the lights I mostly looked at the PAR rating trying to get something over 90.