Many LED companies claim that they are brighter than or as bright as a particular wattage MH. In most cases those comparisons are off. Especially those companies who are not using efficient (high lumen/watt) LEDs in their fixture. All LEDs are not created equally. An LED fixture is limited by how many lumens/watt the LEDs are producing. The lumen/watt efficiency of an LED can range from 4.5 - 150 lm/W. That is a huge range. Many LED makers will not let you know what LEDs are being used in their fixtures. I can tell you that any company using an LED that produces 80 lm/W or better is proud to share that info. Any LED company using a quality LED will put that info up front for you to see. They welcome you to research thier claims. Compare a Boost LED 135 watt fixture and an 120 watt Orphek. One might conclude that the Boost LED product is just as bright as the Orphek since ithey have similar output. Compare the 70 watt Aqua Illumination who's PAR reading at 36" below the surface are equal to those reported by Boost LED's 135 watt fixture at 18" below the surface. I guess what I'm saying is that without all the info, it is impossible to compare any lighting. You need to educate yourself before making a choice.