I bought a Nepenthes ventrata on Amazon. After reading the FAQ on LED lighting at the ICS homepage, I bought a LED light. I ended up with a 150 watt, 90+ CRI, 3,000 K, 1,500 lumens bulb. I placed my light (which is a 40 degree flood) 17 inches above my plant and put the light on a timer. I gave the plant 12 hours on and 12 hours off. The plant is in a south facing window. But this time of year in Oregon, it is almost always overcast and it gets little light from the window.
This morning, I noticed that the top leaves were turning brown. Was it my light?
When the plant arrived it was a bit dry, so I soaked it in distilled water and then let it drain well. I put a little water in the pitchers and put it under my light. I occasionally mist it. The soil is moist, not dry and I have given it little water now and then. It is not sitting in water.
Here is a link to some photos. The first two are of the plant when it arrived. The next three photos show the brown on the top leaves.
The humidity in my house is between 60 and 68% measured at the plant. The house temps never drop much below 65 F (18 C) and the usual low is 68 F (20 C). It can get as warm as 78 F (26 C) during the late afternoons.