|Welcome to Extreme Tactical Dynamics' online catalog. If you are a returning customer and would like to check your account or status of an order, you can log in here. If you are a new customer, you can create an account , or browse our huge selection of LED strobe lights, LED police lights and much more as a guest. If you have any questions about the lights, sirens, or accessories in our inventory, please contact us via email or by phone, our customer service representatives are available weekdays and our online resources are available 24/7. We look forward to providing you with the emergency vehicle lighting and sirens you need to stay safe in the field.