the light you see is also just a reflection off of the metal reflector the light is housed in, the light itself is 150 watts the temp on the perch high 80's to mid 90's depending on where the temp is taken
as far as a drip goes i was thinking of a water bottle with a small tube hooked into it that hangs over the pothos
make sure the temps are for sure or you'll have a burned little man
150W bulb at 12" is going to get upwards of 95* or so
The picture definitely makes it look bad, but seems like he did a fair amount of of design for it.