<span class="link_user">@Alpengrower</span>, okay I see, that's really high. I manage with a dehumidifier in my room to have 60% at lights out and 55% with lights on. Still high but I never had problems yet. Temperatures are also a factor. Mine are always above 20°C even with lights out. Maybe that's something you can improve too?
<span class="link_user">@Ganjin</span>, the thing is that is winter now , if i open the windows they freeze, if i turn the exhaust fan to the max i cant sleep. so ye, is not easy . humidity with led on was around 50-60. but the problem is at night, up to 75%