Oops.. just saw realized you did say what your crop was. Lettuce can be easily over watered and get too hot if your light is too close. More powerful LED lights need to be kept a good 12鈥 to 24鈥 above the canopy depending on your plant. Some LED lights have dials to reduce the lights intensity giving you the ability to keep the light closer. There aren鈥檛 many grow carts that I have seen that are built correctly for giving proper distance from your plant canopy. Usually you end up making your own.
Oops.. just saw realized you did say what your crop was. Lettuce can be easily over watered and get too hot if your light is too close. More powerful LED lights need to be kept a good 12鈥 to 24鈥 above the canopy depending on your plant. Some LED lights have dials to reduce the lights intensity giving you the ability to keep the light closer. There aren鈥檛 many grow carts that I have seen that are built correctly for giving proper distance from your plant canopy. Usually you end up making your own.