Model 11-1005SF All Purpose LED strobe style flasher • Solid-state • Waterproof • 7 flash patterns Standard Patterns: Single, Double, Quad, Alternating, Alternating Variable Speed, Simultaneous Variable Speed, Random Strobe-Style Patterns: Double, Quad, Quint and Mega Alternating Flash; Double and Quad Simultaneous Flash; Random • 2” H x 4” W x ½” D • Use only with LED lights. Click on image to enlarge. 11-1005SFRegular price: $39.99Sale price: $29.99 Customer Pays All Shipping Charges. Pay securely with your Visa, Master Card, Discover/Novus or PayPal with our easy checkout! Note: Purchase orders will be accepted only by municipalities and pre-approved before check out completion and Purchase Order Number received. All others will be immediately rejected and transaction voided. Place your order by Internet, Phone or stop by our Store for the same low internet prices!