Added this sub-forum per @vereecjw's request here: My DIY design If you have personal experience with a specific fixture, please start a thread in this sub-forum (link below, or just click the sub-forum link above) and share your experiences! Algae Scrubber Light Fixture Reviews If possible, please provide as much information about the fixture and your use of it as possible. Things such as the following might help someone make a good decision (feel free to copy & past this list and fill it in: Fixture: Brand and model Link to fixture (either manufacturer or eBay/Amazon/etc listing) Stock photo Actual photo Claimed total wattage Type of LEDs (individual, multichip, etc) Spectrum (number of each type of chip, i.e. 6x 660nm + 3x 450nm, etc) Use: Pictures of your installation Size of your scrubber (LxW)? Do you light both sides? Distance from front of fixture to your screen? If the lamp is a PAR-type fixture, did you remove the bezel and take off the lenses? How many hours/day do you run them? Did you run them at a reduced hours/day or split photoperiod at first If so, when did you increase hours and/or combine photoperiod? How often do you clean your screen? I hope this generates some useful information!!