I have the 2300w with two bulbs, 4 stars for the base which is a hassle, (the issue was resolved with two wheels for stability in the front and back of the base and on top where there is a slight gap). Other than that, I am satisfied with the performance in a 15 sqm room with one bulb, and in another 25 sqm room at 2 meters, it works well on both sides. Overall, it improves the situation with the second bulb that flickers. Generally, it is better than other low-quality ones in terms of performance and portability