I've had this Novatron 500 Plus power pack for quite a while now. It's a nice unit but the output is sort of flaky. It doesn't do "full power" consistently. There's definitely a problem. Maybe just a small problem. Because of this issue, I am selling it "AS-IS". Absolutely no returns for this one. I'm asking $34. If you can fix this sort of thing, you'll have a powerful studio light source for short $$$. Shipping with tracking to US addresses only is $20 (this is going to be a heavy package). Please note that most of my listings have a "Buy It Now" price. Please make a reasonable offer and you might just win this item right now! When you buy from a small mom and pop business, you are not helping a CEO buy a third vacation home. You are helping a little girl get dance lessons, a little boy get his team jersey, a mom or dad put food on the table, a family pay a mortgage or a student pay for college. Our customers are our shareholders and they are the ones we strive to make happy. Thank-you for supporting your local Small Businesses.