{"product_id":"seq1","title":"SEQ1 Model Railway LED Effects Controller \u0026 Sequence Timer","description":"\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003eBLOCKsignalling \u003c\/span\u003e\u003cspan\u003eSEQ1 \u003c\/span\u003e\u003cspan\u003eis \u003c\/span\u003e\u003cspan\u003ea \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emodel \u003c\/span\u003e\u003cspan\u003erailway \u003c\/span\u003e\u003cspan\u003eLED \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003econtroller \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003esequence \u003c\/span\u003e\u003cspan\u003etimer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003edesigned \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cspan\u003eautomatically \u003c\/span\u003e\u003cspan\u003eoperate \u003c\/span\u003e\u003cspan\u003elighting \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003escenic \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003eat \u003c\/span\u003e\u003cspan\u003edifferent \u003c\/span\u003e\u003cspan\u003etimed \u003c\/span\u003e\u003cspan\u003eintervals \u003c\/span\u003e\u003cspan\u003efor \u003c\/span\u003e\u003cspan\u003emore \u003c\/span\u003e\u003cspan\u003evaried \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003erealistic \u003c\/span\u003e\u003cspan\u003emodel \u003c\/span\u003e\u003cspan\u003erailway \u003c\/span\u003e\u003cspan\u003elayouts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003eSEQ1 \u003c\/span\u003e\u003cspan\u003eprovides \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efive \u003c\/span\u003e\u003cspan\u003eindependently \u003c\/span\u003e\u003cspan\u003etimed \u003c\/span\u003e\u003cspan\u003e3.\u003c\/span\u003e\u003cspan\u003e5V \u003c\/span\u003e\u003cspan\u003eoutputs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efor \u003c\/span\u003e\u003cspan\u003eautomatically \u003c\/span\u003e\u003cspan\u003eswitching \u003c\/span\u003e\u003cspan\u003eLED \u003c\/span\u003e\u003cspan\u003elighting \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003escenic \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003eon \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003eoff, \u003c\/span\u003e\u003cspan\u003etogether \u003c\/span\u003e\u003cspan\u003ewith \u003c\/span\u003e\u003cspan\u003ean \u003c\/span\u003e\u003cspan\u003eadditional \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanently-\u003c\/span\u003e\u003cspan\u003eon \u003c\/span\u003e\u003cspan\u003e3.\u003c\/span\u003e\u003cspan\u003e5V \u003c\/span\u003e\u003cspan\u003eoutput\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003efor \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003ethat \u003c\/span\u003e\u003cspan\u003eneed \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cspan\u003eoperate \u003c\/span\u003e\u003cspan\u003econtinuously.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBuilt-\u003c\/span\u003e\u003cspan\u003ein \u003c\/span\u003e\u003cspan\u003etiming \u003c\/span\u003e\u003cspan\u003epresets \u003c\/span\u003e\u003cspan\u003emake \u003c\/span\u003e\u003cspan\u003ethe \u003c\/span\u003e\u003cspan\u003econtroller \u003c\/span\u003e\u003cspan\u003equick \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cspan\u003eset \u003c\/span\u003e\u003cspan\u003eup, \u003c\/span\u003e\u003cspan\u003ewhile \u003c\/span\u003e\u003cspan\u003ethe \u003c\/span\u003e\u003cspan\u003eon \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003eoff \u003c\/span\u003e\u003cspan\u003etimes \u003c\/span\u003e\u003cspan\u003eof \u003c\/span\u003e\u003cspan\u003eeach \u003c\/span\u003e\u003cspan\u003etimed \u003c\/span\u003e\u003cspan\u003eoutput \u003c\/span\u003e\u003cspan\u003ecan \u003c\/span\u003e\u003cspan\u003ealso \u003c\/span\u003e\u003cspan\u003ebe \u003c\/span\u003e\u003cspan\u003eindividually \u003c\/span\u003e\u003cspan\u003eadjusted. \u003c\/span\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003etimings \u003c\/span\u003e\u003cspan\u003eare \u003c\/span\u003e\u003cspan\u003eslightly \u003c\/span\u003e\u003cspan\u003erandomised \u003c\/span\u003e\u003cspan\u003eso \u003c\/span\u003e\u003cspan\u003ethat \u003c\/span\u003e\u003cspan\u003edifferent \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003edo \u003c\/span\u003e\u003cspan\u003enot \u003c\/span\u003e\u003cspan\u003erepeatedly \u003c\/span\u003e\u003cspan\u003eswitch \u003c\/span\u003e\u003cspan\u003eat \u003c\/span\u003e\u003cspan\u003eexactly \u003c\/span\u003e\u003cspan\u003ethe \u003c\/span\u003e\u003cspan\u003esame \u003c\/span\u003e\u003cspan\u003etime, \u003c\/span\u003e\u003cspan\u003ehelping \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cspan\u003ecreate \u003c\/span\u003e\u003cspan\u003emore \u003c\/span\u003e\u003cspan\u003enatural \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003eless \u003c\/span\u003e\u003cspan\u003erepetitive \u003c\/span\u003e\u003cspan\u003emodel \u003c\/span\u003e\u003cspan\u003erailway \u003c\/span\u003e\u003cspan\u003elighting \u003c\/span\u003e\u003cspan\u003eeffects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEach \u003c\/span\u003e\u003cspan\u003eoutput \u003c\/span\u003e\u003cspan\u003ecan \u003c\/span\u003e\u003cspan\u003esupply \u003c\/span\u003e\u003cspan\u003eup \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mA\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003eand \u003c\/span\u003e\u003cspan\u003emultiple \u003c\/span\u003e\u003cspan\u003esuitable \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003ecan \u003c\/span\u003e\u003cspan\u003ebe \u003c\/span\u003e\u003cspan\u003econnected \u003c\/span\u003e\u003cspan\u003eto \u003c\/span\u003e\u003cspan\u003ethe \u003c\/span\u003e\u003cspan\u003esame \u003c\/span\u003e\u003cspan\u003echannel \u003c\/span\u003e\u003cspan\u003eprovided \u003c\/span\u003e\u003cspan\u003ethe \u003c\/span\u003e\u003cspan\u003ecombined \u003c\/span\u003e\u003cspan\u003eload \u003c\/span\u003e\u003cspan\u003eremains \u003c\/span\u003e\u003cspan\u003ewithin \u003c\/span\u003e\u003cspan\u003ethis \u003c\/span\u003e\u003cspan\u003elimit. \u003c\/span\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cspan\u003e3.\u003c\/span\u003e\u003cspan\u003e5V \u003c\/span\u003e\u003cspan\u003eoutputs \u003c\/span\u003e\u003cspan\u003eare \u003c\/span\u003e\u003cspan\u003esuitable \u003c\/span\u003e\u003cspan\u003efor \u003c\/span\u003e\u003cspan\u003emany \u003c\/span\u003e\u003cspan\u003eLED \u003c\/span\u003e\u003cspan\u003eeffects \u003c\/span\u003e\u003cspan\u003enormally \u003c\/span\u003e\u003cspan\u003epowered \u003c\/span\u003e\u003cspan\u003eby \u003c\/span\u003e\u003cspan\u003etwo \u003c\/span\u003e\u003cspan\u003eor \u003c\/span\u003e\u003cspan\u003ethree \u003c\/span\u003e\u003cspan\u003eAA \u003c\/span\u003e\u003cspan\u003ebatteries \u003c\/span\u003e\u003cspan\u003eor \u003c\/span\u003e\u003cspan\u003ecoin \u003c\/span\u003e\u003cspan\u003ecells.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eAutomatic model railway LED effects controller and sequence timer.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFive independently timed 3.5V outputs.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdditional permanently-on 3.5V output.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eUp to 100mA available from each output.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for model railway lighting and scenic effects.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultiple suitable LED effects can be connected to each channel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFour built-in timing presets for quick setup.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIndividually adjustable on and off times for each timed channel.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSlightly randomised timings help create more natural operation.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSuitable for many effects normally powered by two or three AA batteries or coin cells.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBuilt-in output test sequence.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOn-board push button and LED for testing and programming.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRequires a 12V DC power supply.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eAutomatic Model Railway Lighting Effects\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SEQ1 automatically switches its five timed outputs independently, making it ideal for adding \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eautomatic lighting and animated scenic effects to a model railway layout\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSuitable applications include LED lighting and other low-voltage scenic effects that benefit from operating automatically at different intervals rather than remaining permanently switched on.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe timings are slightly randomised so that channels do not always change at exactly the same time. This helps prevent an obviously repetitive sequence and creates more realistic automatic operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne or more suitable effects can be connected to each output. Effects connected to the same channel will switch on and off together.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eBuilt-In Timing Presets\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SEQ1 includes \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003efour built-in timing presets\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing all five timed outputs to be configured quickly for different styles of automatic operation.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe factory setting uses \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ePreset A\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, providing a mixture of different on and off periods across the five timed channels. Alternative presets provide faster sequences, medium intervals or much longer periods between effects.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe on and off timings of each channel can also be programmed individually, allowing the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emodel railway lighting sequence\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e to be customised to suit the layout.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eConnecting LED \u0026amp; Scenic Effects\u003c\/h3\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/Screenshot_2026-10-05_150639.jpg?v=1791209220\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe SEQ1 provides \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e3.5V outputs\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with a maximum load of \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e100mA per output\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Multiple suitable effects can be connected to an individual channel provided their combined current requirement does not exceed 100mA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEffects connected to the same output operate together. The outputs are switched on the negative side, with the positive supply to each LED effect remaining connected while the SEQ1 switches the negative connection to turn the effect on and off.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003ePermanently-On Output\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eIn addition to the five automatically timed outputs, the SEQ1 provides a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epermanently-on 3.5V output\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis can be used for model railway lighting or scenic effects that need to operate continuously and can also provide a reduced-voltage supply for suitable effects normally powered by two or three AA batteries or coin cells.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eOutput Testing\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe SEQ1 includes a built-in test function to make checking your model railway lighting and effects easier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePressing the push button starts the test sequence, with each output switching on in turn for approximately \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e5 seconds\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Once the test has completed, the controller continues its normal timing sequence.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eElectrical Requirements\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eSupply voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 12V DC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eCurrent consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 0.25A\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eRecommended power supply:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 0.5A to 1A\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutput voltage:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 3.5V\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eTimed outputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Five\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003ePermanently-on outputs:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e One.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eMaximum load:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 100mA per output\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan\u003eOutput switching:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Negative-side switching\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eThe SEQ1 should be powered from a suitable \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e12V DC plug-top power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Do not connect it to the auxiliary terminals of a train controller, as these outputs may not provide sufficiently smooth or stable power and could result in unpredictable operation or damage.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eProgramming\u003c\/h3\u003e\n\u003cp\u003eThe SEQ1 includes built-in presets for straightforward setup, but individual channel timings and other settings can also be changed using the on-board push button and LED.\u003cbr\u003eNo computer or additional programming equipment is required.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDocumentation \u0026amp; Support\u003c\/h3\u003e\n\u003cp\u003eFor full installation instructions, wiring diagrams, programming options and troubleshooting guidance, please refer to the product instruction manual:\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/drive.google.com\/file\/d\/1Pg8FlouDse7zjWoELy-D4DOqaqk2bZLJ\/view?usp=sharing\" title=\"SEQ1\" rel=\"noopener\" target=\"_blank\"\u003eProduct Instruction Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"BLOCKsignalling","offers":[{"title":"Default Title","offer_id":59722130260313,"sku":null,"price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4009\/9673\/files\/tlc2a-traffic-light-controller-1249063974.jpg?v=1784051353","url":"https:\/\/blocksignalling.co.uk\/products\/seq1","provider":"BLOCKsignalling","version":"1.0","type":"link"}