This is exactly what I was gonna say. Even with the power adapter you don't get the same quality hit. Not to mention the Solo has smoother hits on your throat, fits stock into a 14mm joint on a bong, and has very little learning curve (if any, you literally heat it up and just start pulling on it. The MFLB takes too long to get a buzz when your tolerance gets higher.) That being said, the MFLB is SUPER small, and is great for stealth uses. I've used mine in a theatre, my living room with family members around, and of course in multiple bathrooms across central Florida.