Eclairage fc 1000 mars hydro

Thank you!

No no do not keep it at 100% as suggested by cuijbau If it’s an FC1000 it’s meant for co2 supplementation.. but still can be used at Lower intensity without. If you stay at 40 cm, cut it down to 10-20% for early Veg

It’s too close and too intense At this stage of growth my Mars Hydro FC’s 6500 are at 25% and a 100cm from tops of plants

Just leave it at 100% and play with the height - I would use it at about 24" (50-60CM ) from canopy at your stage , plants will love it

use the resulting internode length to adjust light intensity -- either adjust distance fromcanopy or use dimmer. More wasteful to adjust height, but it comes with beneifts, too. Greater penetration into canopy if you have a stronger source and a little more distance -- this is due to ramifications of inverse square law of light distribution. 1/x^2 where X is proportion of orignal distance. so if half the distance 1/.5^2 = 4x stronger if half the distance. or... 1/2^2 = 1/4th of the power at twice the distance. IF you have a greater distance, you'll get greater power deeper into canopy. this is based on a single point source for simplicity. We have many diodes, so that does matter and does reduce this effect in central area under light, but still a big difference, nonetheless. take 24" vs 12" distance from canopy and compare what the intensity is 12" deep. the 12" distnace is 1/4th strength at 12" deep. Now for the 24" it's only 1.5x the original distance to guesstimate 12" deep. so 1/1.5^2 = 44%.... 44% vs 25% 12" deep. Yes, the 24" height and power at that distance will be more wasteful if oyu only look at the canopy, but if oyu consider multiple levels it's clear that greater distance, a little less efficacy, can definitely result in bigger yields in some contexts... not all.. this is complicated. extremes are not good in either direction.

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