NanoFlare 4" 4-Watt LED Grille Light [SAE Class 1] [72 Flash Patterns] [3-Year Warranty] Surface Mounted Emergency Strobe Light Head - Blue EFFECTIVE - Being self-contained (no controller needed), having 72 flash patterns, multi-light synchronization, memory recall, and a TBT steady burn function, the NanoFlare light heads effectively combines all these features into one attention-getting package. BULLETPROOF - Combining field-ready components, like an impact resistant lens, metal housing, reinforced wiring, and IP67 waterproof rated, the NFLH series light heads are ready to take on even the harshest of work conditions. POWERFUL AND PRECISE - Our groundbreaking TIR lens is precision engineered to maximize the visible output of each powerful LED, ensuring you are seen from thousands of feet away even under daylight. VERSATILE - Adaptable to any profession or situation, these lights are rated at the brightest of all classes (SAE class 1), available in various color options, and can easily be surface mounted or bracket mounted on your vehicle. BACKUP WHEN YOU NEED IT - Backed by an industry leading 3-year warranty and world-class customer service, you can confidently use the lights how you see fit and rest assure that we've got your back.