Steve, if your helmet is that old, I think you will be pleased with a newer version. They have larger viewing areas, more control over the amount of shade and time it stays dark, and are a fraction of the price they used to be. My first self dimmer was over $250. My current one is under $50...so cheap I almost was afraid to use it, thinking “you get what you pay for”. But, it has done well for the last year.