This is a NEW set of 4 Model ST415PC Clear Hideaway strobe tube by SVP With the Whelen industry standard amp connector. Requires a 1" hole for mounting into headlights, parking lights and any type of light housing that is plastic. They list for $29.99 each. These are factory fresh and we have a lot in stock and need to liquidate! Note to those not real familiar with strobe bulbs: You must have a strobe power supply to operate these bulbs, Whelen, Signal VP, Code 3 Inc., Nova or others with the amp connector housings. STROBEPAK4Regular price: $119.99Sale price: $99.99Color Options: CLEAR Only 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!