- The rate of photosynthesis and transpiration are directly affected by temperature, humidity and air flow.

- The perfect temperature and humidity for your plants are found between 75-85 °F and 50%-70% humidity，with plenty of airflow to replenish CO2. PH is 6-6.5. You may add more calcium and magnesium than normally needed.

-LED Grow lights are passively cooled with zero moving components. They are designed for harsh environments and years of maintenance-free performance. Some basic care will keep your lights working at peaks performances cycle-after-cycle.

-Natural convection removes heat away from the heat sink. In order to properly cool itself, at least one inch of space is required between the fixture and the roof of your grow area. Failure to do so may shorten the fixture’s lifespan.

-To achieve the optimal lifespan and performance of your fixtures, routinely check for and remove excess dust, debris, and mineral build up from heat sink and LED array. Cleaning should always be done with the fixture or using low-pressure compressed air with unplugged from its power source.

-Never use a cloth to clean the diode array, otherwise it may scratch the integrity of the silicon seal, or dislodge diodes entirely. -To limit degradation, avoid touching the diodes with your hands, even in a powered off state.

-In summer or other hot environment, please use a cooling fan to keep a suitable temperature for your plants.

-Do NOT touch while in operation.

-To prevent eye damage, avoid looking directly at the LEDs.

-To reduce the risk of overheating or fire, always allow for adequate ventilation of fixtures and power supplies.