Recently upgraded from Biomax LED Platinum 450 to Biomax Pro Series Ultra based on the results from our smaller unit. Having the larger unit is more convenient and covers more of one’s body. As advertised, the Pro Series is that much more powerful and even more effective than the 450. However, would recommend either series to everyone in a heartbeat. It all depends on one’s needs and one’s budget. Although I may or may not get a reward based on this review, my review is not affected by this aspect. I have purchased two units in two years. That should tell you everything.