Preheat oven to 400 F.
Line a large baking sheet with parchment paper.
In a small bowl, mix cream cheese, cheddar cheese and chili powder.
Wearing disposable gloves, cut jalapenos in half and seed.
Fill each jalapeno half evenly with cream cheese filling.
Wrap each jalapeno with half a slice of bacon.
Place the wrapped jalapenos on the prepared baking sheet. Discard gloves.
Bake until the bacon is browned and crisp and cheese has melted. About 15-20 minutes.
Allow to cool 5 minutes before serving.