Is there such a thing as too much LED light?

Hi @Bills138sbl For the vegetative it is enough to use the led hydro mars, in the vegetative growth the plants do not need a great intensity of light. During flowering you can turn on the 2 lights but pay attention to the temperatures, you must have a good air extraction. good luck mate 👍

I will try to explain this. You can run multiple Led no problem but Par and ppfd come into play. We managed to cram over 750 watts of led lights into our Cave but the light "foot print was a huge factor". We also paid close attention to Umols/par, lights heights and a few other factors. You can not run 2 high powered led together if the par exceeds 1000 it will burn your plants without Co2. You can use other leds if the ppfd doesn't exceed a certain value. The higher par values require supplemental Co2 to really benefit from the Extra light. It's a bit complicated but a good baseline is somewhere around a par of 950 to provide maximum yield outputs without requiring CO2 to benefit from the added light and prevent plant damage. Here's a Video to help explain Cannabis and how much light it can actually use. It's long but informative. www.youtube.com/watch

Hi dude ! if i remember well your mars hydro led is build with reflector with hybrid angle...i mean a part of the light goes to 120° and the other 90°....so be careful to you plant colors diodes (410 nm; 450 nm; 660 nm 730 nm) can easily burn and ruins a part of your final crop... considering that ur mars hydro normally is dedicated for a 2.5 x 4.5 tent you have to be careful with that.... it would be better to raise your lamps and if you absolutely want to keep the two.... play with ur veg mod switch to reduce the power a bit. and after that same for flow keep in mind buddy that "...Burning from LED grow lights is much more likely to occur in the second half of the flowering stage – younger plants are much more resistant and may not show any symptoms..." source : https://www.growweedeasy.com/led-grow-lights-burn-cannabis-buds hope this help ! happy growing 👊