{"product_id":"whelen-plf46-programmable-universal-flasher","title":"Whelen PLF46 Programmable Universal Flasher","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eWhelen PLF46 Flasher\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Whelen PLF46 is a compact, fully programmable solid-state flasher for warning lights on emergency, commercial, and utility vehicles. It sits between a simple flasher and a full lighting controller: six independently assignable outputs, four programmable inputs, and configuration through Whelen Command over USB-C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCORE SPECS\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVoltage:  10–30 VDC  \u003c\/li\u003e\n\u003cli\u003eOutputs: 6 positive-switching channels, 6 A each, 36 A total\u003c\/li\u003e\n\u003cli\u003eInputs: 4 programmable inputs + ground  \u003c\/li\u003e\n\u003cli\u003eSleep current:~200 µA when no outputs are active  \u003c\/li\u003e\n\u003cli\u003eTemperature: −40 °C to +60 °C  \u003c\/li\u003e\n\u003cli\u003eRating: IP67 with the USB-C cap fitted  \u003c\/li\u003e\n\u003cli\u003eConnectors: right-angle waterproof plugs (outputs, power, inputs)  \u003c\/li\u003e\n\u003cli\u003eSize:  roughly 4.7\" × 4.25\" × 2.56\" (compact vs older SmartLogic flashers)  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach output is internally fused at 6 A. Do not fit larger fuses. Typical power per outlet is about 77 W at 12.8 V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHAT IT CAN DO\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProgramming (via Whelen Command)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConnect a USB-C cable (not included) and use Whelen Command to:\u003cbr\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eAssign any flash pattern to any output  \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eGroup or independently control the six outputs  \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eMap the four inputs to patterns, phases, low-power, or custom logic\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eEnable DVI™ (Dynamic Variable Intensity — smoother night dimming \/ intensity change)  \u003cbr\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eEnable Steady-Lock® (hold a steady burn instead of flashing when required)  \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSet low-power \/ cruise behaviour  \u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eIt ships with a default map so it works out of the box:  \n\u003cul\u003e\n\u003cli\u003eInput 1 → outputs 1 \u0026amp; 2, SignalAlert 75 phase 1  \u003c\/li\u003e\n\u003cli\u003eInput 2 → outputs 3 \u0026amp; 4, SignalAlert 75 phase 2  \u003c\/li\u003e\n\u003cli\u003eInput 3 → low power on outputs 1–6  \u003c\/li\u003e\n\u003cli\u003eInput 4 → unused by default  \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll of that can be rewritten in software. Retailers typically list 62 Scan-Lock patterns, plus alternating, simultaneous, and synchronized modes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProtection and diagnostics\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eShort-circuit and overcurrent protection per output  \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThermal protection  \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eStatus LED: solid green = active, blue = USB traffic, flashing green\/yellow = fault \/ overcurrent  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWorks with Whelen LED \/ Super-LED lightheads and many halogen heads. It is specifically called out as compatible with newer products such as VXE warning lights. Lights are wired as positive-switched; the lamp negative goes to chassis ground.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTypical Uses\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDriving multiple lightheads or small modules (grille, dash, deck, surface-mount LEDs) without adding a full WeCan \/ Core system. Useful when you need more current and more programmable channels than a basic 2- or 4-outlet flasher, but do not need a networked controller.\u003c\/p\u003e\n\u003cp\u003ePractical limits: 6 A per channel is plenty for most modern LED modules, but not for large halogen bars or many high-draw heads on one output. Keep total load within 36 A and size supply wiring accordingly (the install sheet includes a wire-gauge chart). Leave the USB-C cap on for the IP67 seal.\u003c\/p\u003e\n\u003cp\u003eUK and International shipping available, contact us for a quote.\u003c\/p\u003e","brand":"SV Lights","offers":[{"title":"Default Title","offer_id":58298848575871,"sku":"PLF46","price":165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0267\/0959\/0051\/files\/IMG_3050.jpg?v=1787997762","url":"https:\/\/www.svlights.co.uk\/products\/whelen-plf46-programmable-universal-flasher","provider":"SV Lights","version":"1.0","type":"link"}