I’m running an HLG550V2 which I always run in flower at 100%. As mentioned just raise and lower the light for intensity. This light replaces a 1000 wt HPS. I am also running 2 Electric Sunshine 300’s which is replacing a 1000 wt HPS. I do dim my lights however in veg. I love the lower utilities bills, hardly any heat as you can even touch the lights and for sure the plants produce more. LED’s Rock.