Tomar Electronics, Inc.: 800, 802, and 840 series strobelights now feature 100% potted construction (waterproof and vibrationproof); multipurpose base (flange mount, pipe mount, and surface mount); 25 percent more flash intensity; and longer lamp life. Both low and medium profile. 360-degree LexanTM lens. Solid-state power supply. Xenon strobelamp. Built-in filters protect against radio interference and spike voltages. Built-in photocell reduces intensity at night.