Hello everyone! I was hoping someone more knowledgeable than I could help by sharing a brief overview of the Beacon Ray series. I've been trying to figure out what the different model numbers for the Beacon Ray series means. There's the Model 17, 173, 174, 175, 176, the "hill light", the "super" beacon ray, ones with clear domes, ones with colored domes, and ones with either plastic or glass domes... I've tried to glean a few things from researching, but haven't been quite able to fill in all the gaps. Any help is greatly appreciated. Thank you!