I would check KEH.com and buy older White Lightning monolights. I've been wearing out my five WL heads for six years of daily use and have never had a single problem with them, not even a bad tube, except for the one I smashed. Worth every penny, especially when you need to shave off a quarter stop; you don't have to move the light, you just dial it down. The thought of working with a Vivitar 285 makes my skin crawl. I love to save a buck, but you don't want to save too many. White Lighting is great quality at a great price, especially used.