Fluorescent yellow body and orange diffuser; all in hyper-polycarbonate resistant to impact, UV and weather conditions. Equipped with a diffuser specially designed for high visibility of the flash both day and night. With twilight sensor: the lamp switches on automatically at night and switches off automatically during the day. Choice between "flash" (flashing) or "fixed" mode (non flashing fixed light). Adjustable hot-galvanized metal fixing bracket; works with a 4R25 or 4LR25 battery, not supplied.