Review on Hygger Advanced 24/7 Lighting Cycle LED Aquarium Light with Full Spectrum, 6 Colors and 5 Intensity Settings - Customizable Fish Tank Light for 30-36 inch Freshwater Planted Tank with Timer by Linh Hellmuth

This is a very good quality light. If there wasn't a better option for the same price, I would most likely leave it. However, it didn't work for me just because of the timer function. First, the timer is not customizable. So if you're using 24/7 mode, stick to the light settings (sunrise to sunset). The light settings used are great, but I wanted more settings. Also, the timer will not keep your configuration when the power is turned off. Everything is reset! They should include a battery that only connects to the schedule (not the lights) and saves your configuration. It would also be nice if they had a clock that you could set. That being said, you have to turn it on at a specific time if you want to turn it on, and then you're stuck with the exact steps they programmed. This is a great light and better than the ones I used over a year ago but not the best and could be better for the price. I hope they keep getting better!