I got this item as a gift but already have it (and love it!). It's simple to use and works with most electric toothbrushes. Here are the product details from Philips:

Philips Sonicare introduces a breakthrough innovation with a UV Sanitizer that helps kill up to 99 percent of bacteria on your toothbrush. With a simple push of a button, UV Clean technology sanitizes your brush head to clean right down to the bristles. The Sonicare UV Sanitizer not only cleans but also offers a storing solution to help ensure you are maximizing your oral hygiene regimen. Once activated, your toothbrush goes through a 10 minute cycle to kill up to 99 percent of bacteria off your brush head. The unit fits Sonicare e-series and ProResults brush heads as well as other leading rechargeable brands including Oral B Flexisoft and Floss Action. The UV Sanitizer holds up two brush heads at a time. Remember to continue to replace your brush head at least every 3 months to ensure optimal results.