These come in all sizes. They do a good job for me. If you need more light, just get another one. Amazon will take them back if you buy Prime. if you want higher light than this Finnex makes a hellishly bright model. These get hot. https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1
. Again if you want more light get 2. all in your $300 budget. Current and Fluval make units with remotes that you can set your own light intensity and color with but expect to pay for this.