The BCY cylindrical warning light features a UV- and impact-resistant polycarbonate housing, is resistant to harsh environmental conditions, and offers fixed or selectable flash modes, a choice of LED counts and color options. It is a large-format warning light. Its external Fresnel lens design produces a powerful warning light. The BCY cylindrical warning light offers fixed, uniform flash modes or selectable flash modes. When multiple BCY cylindrical warning lights are mounted side by side, they can flash synchronously as a single unit with the optional synchronous connection.