Just starting out need help

[Davyg]

This link will give you an idea. @dbrn32 is the man to answer more technical in depth questions for you. I’ve tagged him so he will swing by when he gets a chance

Light Intensity Question

Setting up my new tent - 2x4 Gorilla with a 320 XL light by HLG which is a QB, 3000k, and the light has an adjustable dimmer knob on the power supply. At the very lowest setting, the light pulls 36 watts from the wall and the highest setting pulls 349 watts from the wall. I have an Apogee PAR meter that plugs into my laptop USB, so I can set my uMol of light by dimming the power supply. Is there a chart that is easily linked to show how many uMol of light the seedling needs to do best…then sh…