Hey y’all! When do you all switch from 75 percent veg light to 100 percent bloom light? At what week of bloom do you all switch to 100 percent light? Here are my plants… At 75 percent light … should I flip to 100? [PXL_20230121_143132605] [PXL_20230121_143122706] [PXL_20230121_143115148] [PXL_20230121_143110452]

[image] Kozmoz: At what week of bloom do you all switch to 100 percent light? Here are my plants… At 75 percent light … should I flip to 100? They look happy at 75%, 100% might be too much. I’d download the photone app on your phone and measure what your getting at the canopy. [image] Start using DLI Lighting Daily Light Interval (DLI) is a quick and efficient way to calculate how much light our plants are receiving within a 24hr period, allowing for easy light adjustments. DLI will help you and the community to better understand your lighting in a more universal term, leading to clearer communication of what the true light value is. Almost all smartphones have the ability to use an app (we will get to this don’t jump the gun) in order to calculate DLI, and if that is not an option a cheap LUX meter… [image] Start using DLI Lighting Results are in, I was impressed with the Photone app, pretty close to the Apogee when a diffuser is used, totally wack without a diffuser. Starting with the Apogee SQ-626 in the flowering tent [image] Get a reading of 1297 [image] Will place phone at same location with diffuser [image] With diffuser removed [image] Pretty close, had similar results in the veg tent. Apogee showed 321 at plant tops [image] Photone with diffuser [image] Without diffuser [image]

Agree with @Dave101. My flower tent lighting is at 50% with a DLI of 45-52 across the canopy :love_you_gesture:

Agree with the others it depends on your light and the area covered you may never have to turn your light all the way up but on the flip side you can have it all the way and not have enough. The best way to tell is buy a proper light meter (expensive) or the photone app then read @Nicky DLI thread that @Dave101 linked

I don’t think you need a light meter. Guys when you buy a light it tells you the exact power and levels you will get from various distances. There’s no guessing because the lights tell you the power you get and gram per space!!!

[image] Kozmoz: it tells you the exact power and levels you will get from various distances Some do. Others lie thru their teeth! And pay for good reviews, whether warranted or not. A light meter will tell you the truth.

For me, 25% max flower power until transition (640W is my max in a 4x4), 50% during flip week, 75% during week 3-4 flower, 100% final 2 weeks. More is not better and does not encourage faster growth. Overloading light too early will fry you in the long run and make your plants run out of light when they need it most in late flower (if the knobs already 100, there’s nothing you can do all of flower unless you get a bigger light). I like to let my plants grow into the high intensity.

Wow peoples perspectives are so interesting and usually just not on point… For example, I just learned that my light suggest 75 percent for veg, and 50 percent for seedling. Well for a entire year I did not know, and I have 5 perfect auto harvest with light power set at 100 for 20 hours on from seedling! Plants came out perfect and they are loved by everyone. Here are pictures of plants grown on 100 percent light from seedling with Marshydro 730 watt light. [PXL_20220912_215800286] [PXL_20220912_215746720]

[image] Kozmoz: peoples perspectives are so interesting and usually just not on point People are relaying their experience: don’t discount what is said… Too little light and flower yields will suffer. Too much light and you are simply paying the electric meter. I run my own lights made diy out of Samsung EB strips: I have found over time that I don’t need over 200 watts in flower per plant in my grow space to deliver 10+ oz. of dried flower per plant. Am I wasting energy? Perhaps. Are my plants happy? Yes they are. [IMG_0688] [IMG_0774]

Well said, I appreciate your attitude! :v: :slightly_smiling_face:

[image] Kozmoz: don’t think you need a light meter. Guys when you buy a light it tells you the exact power and levels you will get from various distances. :point_up_2: I’m going to disagree with this statement from personal experience. Some of the stated hanging distances might get you close but not ideal or optimum for bud development. 4 of my HLGs don’t have dials but an adjustment screw under a plug on the driver and to adjust intensity or height for proper DLI a meter is needed :love_you_gesture:

When you switch to 100 percent light

Grow Support

Dave101 January 21, 2023, 4:32pm 2

They look happy at 75%, 100% might be too much. I’d download the photone app on your phone and measure what your getting at the canopy.

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When you switch to 100 percent light

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