It sounds like there might be a couple of factors contributing to the increase in humidity when the lamp is turned off. Here are a few possibilities to consider:
- Condensation: When the lamp is on, it could be generating heat that keeps the air temperature inside the tent higher than the surrounding living room. When you turn off the lamp, the temperature inside the tent drops, potentially causing condensation to form on the walls or other surfaces. This condensation can contribute to higher humidity levels.
- Poor Ventilation: If your tent doesn't have adequate ventilation, the moisture produced by your plants, soil, and possibly even the lamp itself can get trapped inside, leading to higher humidity levels, especially when the temperature drops.
- Watering Schedule: If you water your plants in the evening before the lamp turns off, this could contribute to higher humidity levels overnight as the water evaporates.
To address these issues, you could:
- Improve ventilation by adding more vents or fans to circulate air within the tent.
- Consider using a dehumidifier inside the tent, especially during the night when humidity levels tend to rise.
- Adjust your watering schedule so that the soil has a chance to dry out before the lamp turns off, reducing the amount of moisture in the air.
Inspect your tent for any signs of leaks or areas where condensation might be forming, and take steps to improve insulation if necessary.
By addressing these factors, you should be able to better control the humidity levels inside your tent, even when the lamp is turned off