The ultimate vampire deterrent, sunlight. No vampire can withstand sunlight, regardless of they're wearing SPF 1 or 1 million. Some vampires have different tolerances for the amount of sunlight they can withstand without going up in flames. A single ray or a brief flash causes pain; a couple seconds makes the vampire smoke and flame, and in a few minutes the vampire will be reduced to ashes. Very neat and sweet, just push the vampire out the door into the sun (or push his cage into the sun) and watch the results.