I’ve been decorating with the best laser lights I could find for years. I thought I found great lights then all but a couple were stolen last year. I chose the S-28 green only lasers due to the high specs. My old class 3 commercial lasers look like toy lights when compared to these awesomely BRIGHT lasers from Spectrum Laser Lights. In addition to how bright and broad the lights, each part of the light is heavy and substantial and obviously designed to last. It’s sad to need cables and locks , but it’s comforting to have the locks and cables due to protect the investment. I’m going to order three more. Also, Matt responded to my questions almost immediately and very thoroughly over the past months as I pondered replacing what was stolen. Great product and company. I’m confident to highly recommend. Let there be light!