Sorry for bumping an old thread, but I have the DSD flat panel (without heater) on order and was curious how it's held up for you so far in terms of dew-buildup, and if you've found a solution to deal with the issue. It's the only thing I'm worried about with this product, and I almost jumped the gun and got it with the heater before I learned that it sat on the clamp side instead of in the LED panel side, which I found a bit confusing given the description on the product page: ''For those with humid conditions, we are also offering an optional accessory – built in heater, which can dry up the dew off the LED panel.''.