{"id":15659,"date":"2026-10-07T08:58:34","date_gmt":"2026-10-07T05:58:34","guid":{"rendered":"https:\/\/ledonline.lt\/?page_id=15659"},"modified":"2026-10-07T09:02:58","modified_gmt":"2026-10-07T06:02:58","slug":"transformatoriaus-skaiciuokle","status":"publish","type":"page","link":"https:\/\/ledonline.lt\/lv\/transformatoriaus-skaiciuokle\/","title":{"rendered":"Transformatoriaus skai\u010diuokl\u0117"},"content":{"rendered":"<!-- LEDonline transformatoriaus galios skai\u010diuokl\u0117. \u012eklijuokite \u012f WordPress \u201eCustom HTML\u201c blok\u0105. -->\r\n<link rel=\"stylesheet\" href=\"https:\/\/fonts.googleapis.com\/css2?family=IBM+Plex+Sans:wght@400;500;600&family=Barlow+Condensed:wght@500;600&display=swap\">\r\n<style>\r\n#lo-calc{--bg:#EEF0F2;--panel:#FAFBFC;--ink:#20262D;--muted:#5E6873;--line:#C9CFD5;--led:#FFB938;--led-glow:rgba(255,185,56,.55);--warn:#9A4A00;--warn-bg:#FFF1DC;\r\n box-sizing:border-box;max-width:640px;margin:0 auto;padding:20px 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(max-width:420px){#lo-calc .strip{grid-template-columns:1fr 1fr}#lo-calc .strip .remove{grid-column:1\/-1}#lo-calc .rec{font-size:2.7rem}}\r\n@media (prefers-reduced-motion:reduce){#lo-calc .leds span{transition:none}}\r\n@container localc (max-width:460px){\r\n #lo-calc .lo-h{font-size:1.45rem}\r\n #lo-calc .lead{font-size:.9rem;margin-bottom:14px}\r\n #lo-calc .panel{padding:12px}\r\n #lo-calc .voltbox{padding:10px}\r\n #lo-calc .seg{width:100%}\r\n #lo-calc .seg button{flex:1;padding:9px 8px;white-space:normal;font-size:.9rem}\r\n #lo-calc .seg-big button{padding:10px 8px;font-size:1.05rem}\r\n #lo-calc .strip{grid-template-columns:1fr 1fr;gap:8px}\r\n #lo-calc .strip .remove{grid-column:1\/-1;padding:6px}\r\n #lo-calc .result{padding:14px 12px}\r\n #lo-calc .rec{font-size:2.3rem}\r\n #lo-calc .rec small{font-size:1.1rem}\r\n #lo-calc .nums{gap:6px}\r\n #lo-calc .nums b{font-size:1.15rem}\r\n #lo-calc .nums div{font-size:.72rem}\r\n #lo-calc .products h2{font-size:1.15rem}\r\n #lo-calc .pname{font-size:.9rem}\r\n #lo-calc .ptype{font-size:.75rem}\r\n #lo-calc .price{font-size:1.15rem}\r\n #lo-calc .how{font-size:.8rem}\r\n #lo-calc .lead,#lo-calc .volt-hint,#lo-calc .how-more{display:none}\r\n #lo-calc .lo-h{font-size:1.2rem;margin-bottom:10px}\r\n #lo-calc .group{margin-bottom:12px}\r\n #lo-calc .field-title{font-size:.85rem;margin-bottom:6px}\r\n #lo-calc .volt-title{font-size:.9rem}\r\n #lo-calc input{padding:6px 8px;font-size:.9rem}\r\n #lo-calc .strip{padding:8px 0}\r\n #lo-calc .strip label{font-size:.75rem}\r\n #lo-calc .add{font-size:.85rem;padding:2px 0}\r\n #lo-calc .result{margin-top:12px}\r\n #lo-calc .rec-label{font-size:.78rem}\r\n #lo-calc .rec{font-size:1.9rem;margin:2px 0 10px}\r\n #lo-calc .leds span{height:7px}\r\n #lo-calc .load{font-size:.75rem;margin-bottom:10px}\r\n #lo-calc .nums{padding-top:10px}\r\n #lo-calc .warn{font-size:.78rem;padding:8px 10px}\r\n #lo-calc .products{margin-top:12px}\r\n #lo-calc a.prod{padding:8px 0}\r\n #lo-calc a.prod:not(.all):nth-of-type(n+4){display:none}\r\n #lo-calc .how{margin-top:10px;font-size:.75rem}\r\n}\r\n<\/style>\r\n<div id=\"lo-calc\">\r\n  <div class=\"lo-h\">Kokio transformatoriaus reikia j\u016bs\u0173 LED juostai?<\/div>\r\n  <p class=\"lead\">\u012eveskite juostos gali\u0105 ir ilg\u012f. Apskai\u010diuosime reikiam\u0105 maitinimo bloko gali\u0105 su 30 % atsarga.<\/p>\r\n\r\n  <section class=\"panel\">\r\n    <div class=\"group voltbox need\" id=\"lo-voltbox\">\r\n      <p class=\"field-title volt-title\">Pasirinkite juostos \u012ftamp\u0105<\/p>\r\n      <div class=\"seg seg-big\" id=\"lo-volt\">\r\n        <button type=\"button\" data-v=\"12\" aria-pressed=\"false\">12 V<\/button>\r\n        <button type=\"button\" data-v=\"24\" aria-pressed=\"false\">24 V<\/button>\r\n      <\/div>\r\n      <p class=\"volt-hint\">\u012etampa nurodyta juostos pavadinime arba ant rit\u0117s.<\/p>\r\n    <\/div>\r\n\r\n    <div class=\"group\">\r\n      <p class=\"field-title\">LED juostos<\/p>\r\n      <div id=\"lo-strips\"><\/div>\r\n      <button type=\"button\" class=\"add\" id=\"lo-add\">+ Prid\u0117ti kit\u0105 juost\u0105<\/button>\r\n    <\/div>\r\n\r\n    <div class=\"group\" style=\"margin-bottom:0\">\r\n      <p class=\"field-title\">Kur montuosite?<\/p>\r\n      <div class=\"seg\" id=\"lo-ip\">\r\n        <button type=\"button\" data-ip=\"any\" aria-pressed=\"true\">Sausoje patalpoje<\/button>\r\n        <button type=\"button\" data-ip=\"67\" aria-pressed=\"false\">Dr\u0117gnoje vietoje \/ lauke<\/button>\r\n      <\/div>\r\n    <\/div>\r\n\r\n\r\n  <\/section>\r\n\r\n  <section class=\"result\" aria-live=\"polite\">\r\n    <p class=\"rec-label\">Rekomenduojamas transformatorius<\/p>\r\n    <p class=\"rec\" id=\"lo-rec\">\u2013<\/p>\r\n    <div class=\"leds\" id=\"lo-leds\" aria-hidden=\"true\"><\/div>\r\n    <p class=\"load\" id=\"lo-load\">\u012eveskite juostos duomenis<\/p>\r\n    <div class=\"nums\">\r\n      <div><b id=\"lo-pRaw\">0 W<\/b>juost\u0173 galia<\/div>\r\n      <div><b id=\"lo-pRes\">0 W<\/b>su 30 % atsarga<\/div>\r\n      <div><b id=\"lo-amp\">0 A<\/b>srov\u0117<\/div>\r\n    <\/div>\r\n    <div class=\"warn\" id=\"lo-warn\"><\/div>\r\n  <\/section>\r\n\r\n  <section class=\"panel products\">\r\n    <h2 id=\"lo-prodTitle\">Tinkami transformatoriai<\/h2>\r\n    <div id=\"lo-prodList\"><\/div>\r\n  <\/section>\r\n\r\n  <p class=\"how\">Kaip skai\u010diuojame: <code>galia (W\/m) \u00d7 ilgis (m) + 30 % atsargos<\/code>, t. y. <code>\u00d7 1,3<\/code>.<span class=\"how-more\"> Juostos gali\u0105 rasite prek\u0117s apra\u0161yme arba ant rit\u0117s. Parenkamas ma\u017eiausias m\u016bs\u0173 parduotuv\u0117s transformatorius, ne ma\u017eesnis u\u017e gaut\u0105 skai\u010di\u0173. Kainos gali keistis \u2013 tiksli\u0105 kain\u0105 matysite prek\u0117s puslapyje.<\/span><\/p>\r\n<\/div>\r\n<script>\r\n(function(){\r\n\r\n\/\/ [\u012ftampa, galia W, IP, tipas, kaina \u20ac, nuoroda]\r\nconst 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TYPE={'':'Standartinis','slim':'Ultra plonas','reg':'Su ry\u0161kumo reguliavimu 25\u2013100 %','triac':'Dimeriuojamas TRIAC \/ 0\u201310 V','dali':'Dimeriuojamas DALI-2'};\r\nconst CAT={12:'https:\/\/ledonline.lt\/produkto-kategorija\/led-transformatoriai\/12v-led-transformatoriai\/',24:'https:\/\/ledonline.lt\/produkto-kategorija\/led-transformatoriai\/24v-led-transformatoriai\/'};\r\nconst PRESETS=[4.8,7.2,9.6,11,12,14.4,19.2,20,24];\r\nlet volt=null, ipMode='any';\r\nconst stripsEl=document.getElementById('lo-strips');\r\nconst num=v=>{const n=parseFloat(String(v).replace(',','.'));return isFinite(n)&&n>0?n:0};\r\nconst fmt=(n,d=1)=>n.toLocaleString('lt-LT',{maximumFractionDigits:d});\r\n\r\nfunction addStrip(w='9.6',l='5'){\r\n  const row=document.createElement('div');row.className='strip';\r\n  const id=Math.random().toString(36).slice(2,7);\r\n  row.innerHTML=`<div><label for=\"w${id}\">Galia, W\/m<\/label>\r\n    <input id=\"w${id}\" class=\"w\" inputmode=\"decimal\" list=\"lo-presets\" value=\"${w}\"><\/div>\r\n    <div><label for=\"l${id}\">Ilgis, m<\/label>\r\n    <input id=\"l${id}\" class=\"l\" inputmode=\"decimal\" value=\"${l}\"><\/div>\r\n    <button type=\"button\" class=\"remove\" aria-label=\"Pa\u0161alinti juost\u0105\">Pa\u0161alinti<\/button>`;\r\n  row.querySelector('.remove').onclick=()=>{row.remove();toggleRemove();calc()};\r\n  row.querySelectorAll('input').forEach(i=>i.addEventListener('input',calc));\r\n  stripsEl.appendChild(row);toggleRemove();\r\n}\r\nfunction toggleRemove(){\r\n  const rows=stripsEl.querySelectorAll('.strip');\r\n  rows.forEach(r=>r.querySelector('.remove').style.visibility=rows.length>1?'visible':'hidden');\r\n}\r\nconst dl=document.createElement('datalist');dl.id='lo-presets';\r\ndl.innerHTML=PRESETS.map(p=>`<option value=\"${p}\">`).join('');document.getElementById('lo-calc').appendChild(dl);\r\nconst leds=document.getElementById('lo-leds');\r\nfor(let i=0;i<12;i++)leds.appendChild(document.createElement('span'));\r\n\r\nfunction pool(){return P.filter(p=>p.v===volt&&(ipMode==='any'||p.ip>=67))}\r\n\r\nfunction calc(){\r\n  let raw=0,maxLen=0;\r\n  stripsEl.querySelectorAll('.strip').forEach(r=>{\r\n    const w=num(r.querySelector('.w').value),l=num(r.querySelector('.l').value);\r\n    raw+=w*l; if(w)maxLen=Math.max(maxLen,l);\r\n  });\r\n  const k=1.3;\r\n  if(!volt){\r\n    ['lo-pRaw','lo-pRes','lo-amp'].forEach(id=>document.getElementById(id).textContent='\u2013');\r\n    document.getElementById('lo-rec').textContent='\u2013';\r\n    document.getElementById('lo-load').textContent='Pirmiausia pasirinkite juostos \u012ftamp\u0105: 12 V arba 24 V';\r\n    document.getElementById('lo-warn').textContent='';light(0);\r\n    document.getElementById('lo-prodTitle').textContent='Tinkami transformatoriai';\r\n    document.getElementById('lo-prodList').innerHTML='<p class=\"empty\">Pasirinkite juostos \u012ftamp\u0105 \u2013 \u010dia matysite tinkamus transformatorius.<\/p>';\r\n    return;\r\n  }\r\n  const need=raw*k, amp=raw\/volt;\r\n  document.getElementById('lo-pRaw').textContent=fmt(raw)+' W';\r\n  document.getElementById('lo-pRes').textContent=fmt(need)+' W';\r\n  document.getElementById('lo-amp').textContent=fmt(amp)+' A';\r\n  const rec=document.getElementById('lo-rec'),load=document.getElementById('lo-load'),warn=document.getElementById('lo-warn');\r\n  const msgs=[], list=pool();\r\n  const sizes=[...new Set(list.filter(p=>p.t!=='dali'&&p.t!=='triac').map(p=>p.w))].sort((a,b)=>a-b);\r\n  let size=sizes.find(s=>s>=need), count=1;\r\n  if(!raw){rec.textContent='\u2013';load.textContent='\u012eveskite juostos duomenis';light(0);size=null}\r\n  else if(!size){\r\n    size=sizes[sizes.length-1]; count=Math.ceil(need\/size);\r\n    rec.innerHTML=`${count} \u00d7 ${size} W<small>${volt} V<\/small>`;\r\n    load.textContent='Tokiai galiai reik\u0117s keli\u0173 transformatori\u0173 \u2013 juost\u0105 padalinkite \u012f dalis.';\r\n    light(raw\/(count*size));\r\n  } else {\r\n    rec.innerHTML=`${size} W<small>${volt} V<\/small>`;\r\n    load.textContent=`Transformatorius bus apkrautas ${Math.round(raw\/size*100)} %`;\r\n    light(raw\/size);\r\n  }\r\n  const lim=volt===12?5:10;\r\n  if(maxLen>lim)msgs.push(`Ilgesn\u0119 nei ${lim} m juost\u0105 (${volt} V) jungiame i\u0161 abiej\u0173 gal\u0173 arba dalimis \u2013 kitaip tolimasis galas \u0161vies silpniau.`);\r\n  if(volt===12&&raw>150)msgs.push('Didelei galiai verta rinktis 24 V juost\u0105 \u2013 ma\u017eesn\u0117 srov\u0117, platesnis transformatori\u0173 pasirinkimas.');\r\n  warn.textContent=msgs.join(' ');\r\n  renderProducts(size,count,list);\r\n}\r\nfunction renderProducts(size,count,list){\r\n  const box=document.getElementById('lo-prodList'),title=document.getElementById('lo-prodTitle');\r\n  if(!size){title.textContent='Tinkami transformatoriai';box.innerHTML='<p class=\"empty\">\u012eveskite juostos gali\u0105 ir ilg\u012f \u2013 \u010dia matysite tinkamus transformatorius.<\/p>';return}\r\n  const items=list.filter(p=>p.w===size).sort((a,b)=>a.price-b.price);\r\n  title.textContent=(count>1?`${count} vnt. \u00d7 `:'')+`${volt} V ${size} W transformatoriai`;\r\n  box.innerHTML=items.map((p,i)=>`<a class=\"prod\" href=\"${p.url}\" target=\"_blank\" rel=\"noopener\">\r\n    <span><span class=\"pname\">${volt}V ${p.w}W, IP${p.ip}${i===0&&items.length>1?'<span class=\"cheap\">pigiausias<\/span>':''}<\/span>\r\n    <span class=\"ptype\">${TYPE[p.t]}<\/span><\/span>\r\n    <span class=\"price\">\u20ac${p.price}<\/span><\/a>`).join('')+\r\n    `<a class=\"prod all\" href=\"${CAT[volt]}\" target=\"_blank\" rel=\"noopener\"><span class=\"pname\">Visi ${volt} V transformatoriai<\/span><span class=\"price\">\u203a<\/span><\/a>`;\r\n}\r\nfunction light(p){\r\n  const on=Math.round(Math.min(p,1)*12);\r\n  leds.querySelectorAll('span').forEach((s,i)=>s.classList.toggle('on',i<on));\r\n}\r\nfunction seg(id,attr,cb){document.querySelectorAll(`#${id} button`).forEach(b=>b.onclick=()=>{\r\n  document.querySelectorAll(`#${id} button`).forEach(x=>x.setAttribute('aria-pressed',x===b));cb(b.dataset[attr]);calc();})}\r\nseg('lo-volt','v',v=>{volt=+v;const b=document.getElementById('lo-voltbox');b.classList.remove('need');b.querySelector('.volt-title').textContent='Juostos \u012ftampa';});\r\nseg('lo-ip','ip',v=>ipMode=v);\r\ndocument.getElementById('lo-add').onclick=()=>{addStrip('','');calc()};\r\naddStrip();calc();\r\n\r\n})();\r\n<\/script>\r\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-15659","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/pages\/15659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/comments?post=15659"}],"version-history":[{"count":1,"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/pages\/15659\/revisions"}],"predecessor-version":[{"id":15660,"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/pages\/15659\/revisions\/15660"}],"wp:attachment":[{"href":"https:\/\/ledonline.lt\/lv\/wp-json\/wp\/v2\/media?parent=15659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}