[{"@context":"https:\/\/schema.org\/","@type":"Article","@id":"https:\/\/www.stavcom.cz\/jak-vybrat-spravnou-led-zarovku\/#Article","mainEntityOfPage":"https:\/\/www.stavcom.cz\/jak-vybrat-spravnou-led-zarovku\/","headline":"Jak vybrat spr\u00e1vnou LED \u017e\u00e1rovku","name":"Jak vybrat spr\u00e1vnou LED \u017e\u00e1rovku","description":"U\u017e je to n\u011bjak\u00fd ten rok, kdy byla v EU zak\u00e1z\u00e1na v\u00fdroba klasick\u00fdch \u017e\u00e1rovek. Po z\u00e1kazu se jako n\u00e1hrada za\u010dalo prod\u00e1vat mimo jin\u00e9 i LED osv\u011btlen\u00ed (elektroluminiscen\u010dn\u00ed diody). M\u00e1 velk\u00e9 v\u00fdhody oproti klasice. Je velmi \u00fasporn\u00e9, m\u00e1 obrovskou \u017eivotnost a n\u00edzkou h\u0159ejivost. Toto osv\u011btlen\u00ed lze vyu\u017e\u00edt tam, kde se pou\u017e\u00edvaly klasick\u00e9 \u017e\u00e1rovky a to d\u00edky standardn\u00edm...","datePublished":"2019-11-02","dateModified":"2023-05-22","author":{"@type":"Person","@id":"https:\/\/www.stavcom.cz\/author\/#Person","name":"","url":"https:\/\/www.stavcom.cz\/author\/","identifier":1,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/b86e461e91a792eb6523c2667396c9868de382fea5dd80e25dc0d9e030173b65?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/b86e461e91a792eb6523c2667396c9868de382fea5dd80e25dc0d9e030173b65?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"stavcom.cz","logo":{"@type":"ImageObject","@id":"\/logo.png","url":"\/logo.png","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/www.stavcom.cz\/wp-content\/uploads\/img_a361722_w3872_t1574871391.jpg","url":"https:\/\/www.stavcom.cz\/wp-content\/uploads\/img_a361722_w3872_t1574871391.jpg","height":0,"width":0},"url":"https:\/\/www.stavcom.cz\/jak-vybrat-spravnou-led-zarovku\/","about":["Byt a d\u016fm"],"wordCount":607,"articleBody":"U\u017e je to n\u011bjak\u00fd ten rok, kdy byla v EU zak\u00e1z\u00e1na v\u00fdroba klasick\u00fdch \u017e\u00e1rovek. Po z\u00e1kazu se jako n\u00e1hrada za\u010dalo prod\u00e1vat mimo jin\u00e9 i LED osv\u011btlen\u00ed (elektroluminiscen\u010dn\u00ed diody). M\u00e1 velk\u00e9 v\u00fdhody oproti klasice. Je velmi \u00fasporn\u00e9, m\u00e1 obrovskou \u017eivotnost a n\u00edzkou h\u0159ejivost. Toto osv\u011btlen\u00ed lze vyu\u017e\u00edt tam, kde se pou\u017e\u00edvaly klasick\u00e9 \u017e\u00e1rovky a to d\u00edky standardn\u00edm patic\u00edm. Probl\u00e9m nastal s ud\u00e1van\u00fdmi parametry. Ne ka\u017ed\u00fd si s nimi dok\u00e1zal poradit. I dnes \u010dlov\u011bk t\u00e1pe, co vlastn\u011b jednotliv\u00e9 pojmy znamenaj\u00ed a jak tedy vybrat tu spr\u00e1vnou „\u017e\u00e1rovku“ s cht\u011bnou sv\u00edtivost\u00ed.Barva sv\u011btla je ud\u00e1van\u00e1 v Kelvinech (jednotka tepla). V prvn\u00ed \u0159ad\u011b si mus\u00edte rozmyslet, jak m\u00e1 osv\u011btlen\u00ed vypadat. Nap\u0159\u00edklad v kuchyni, kde budete cht\u00edt dob\u0159e vid\u011bt na pr\u00e1ci, se hod\u00ed b\u00edl\u00e9 sv\u011btlo. Naopak p\u0159\u00edjemn\u00e9ho ve\u010dern\u00edho osv\u011btlen\u00ed lampi\u010dkou v ob\u00fdv\u00e1ku dos\u00e1hnete sp\u00ed\u0161e \u017elut\u00fdm tepl\u00fdm sv\u011btlem. \u010c\u00edm vy\u0161\u0161\u00ed je hodnota Kelvin\u016f, t\u00edm je sv\u011btlo v\u00edce b\u00edl\u00e9. \u017dlutou barvu (tepl\u00e1 b\u00edl\u00e1) z\u00edsk\u00e1te, kdy\u017e koup\u00edte osv\u011btlen\u00ed v rozmez\u00ed 2800 – 3300K. Pokud chcete n\u011bco v\u00edce do b\u00edla (neutr\u00e1ln\u00ed b\u00edl\u00e1), tak mus\u00edte s\u00e1hnout po ozna\u010den\u00ed 4000 – 4500K a pro studenou b\u00edlou mus\u00edte vyb\u00edrat okolo 6000K.Sv\u00edtivost (intenzita sv\u011btla) je na obalu vyj\u00e1d\u0159ena v lumenech. U \u017e\u00e1rovek jsme byli zvykl\u00ed jednodu\u0161e vyb\u00edrat s\u00edlu osv\u011btlen\u00ed dle Watt\u016f \u017e\u00e1rovky. Zjednodu\u0161en\u011b m\u016f\u017eete vyn\u00e1sobit p\u0159\u00edkon (W) LED osv\u011btlen\u00ed \u0161esti a dostanete p\u0159ibli\u017en\u00fd p\u0159\u00edkon klasick\u00e9 \u017e\u00e1rovky (p\u0159. 10 W x 6 = 60 W). V\u00fdsledek ale nemus\u00ed b\u00fdt p\u0159esn\u00fd, z\u00e1le\u017e\u00ed na v\u00fdrobn\u00ed technologii a kvalit\u011b. Proto je d\u016fle\u017eit\u00e9 sledovat po\u010det lumen\u016f. Existuje p\u0159evodn\u00ed tabulka (p\u0159. 25 W = 220-230 lm, 40 W = 410-440 lm, 60 W = 770-820 lm, atd.)\u00dahel svitu ve stupn\u00edchn\u00e1m \u0159\u00edk\u00e1, jak velkou plochu \u017e\u00e1rovkou osv\u00edt\u00edme. Plat\u00ed p\u0159\u00edm\u00e1 \u00fam\u011bra, \u010d\u00edm v\u011bt\u0161\u00ed \u00fahel t\u00edm v\u00edce osv\u011btlen\u00e9ho prostoru pod \u017e\u00e1rovkou. Tak t\u0159eba 45° se hod\u00ed na osv\u011btlen\u00ed men\u0161\u00edch prostor\u016f, nap\u0159. do lampi\u010dky nad pracovn\u00ed st\u016fl.Index pod\u00e1n\u00ed barev Ra n\u00e1m ud\u00e1v\u00e1 shodu barev p\u0159edm\u011bt\u016f osv\u011btlen\u00fdch LED \u017e\u00e1rovkou v porovn\u00e1n\u00ed pod denn\u00edm sv\u011btlem. Hodnota se ud\u00e1v\u00e1 v rozmez\u00ed od 0 do 100. 0 znamen\u00e1, \u017ee p\u0159edm\u011bt pod LED osv\u011btlen\u00edm bude m\u00edt odli\u0161n\u00e9 barvy, ne\u017e kdy\u017e bude vystaven denn\u00edmu sv\u011btlu. Barvy jsou nejv\u00edce re\u00e1ln\u00e9 p\u0159i hodnot\u011b 100, tuto hodnotu m\u00e1 denn\u00ed sv\u011btlo. LED osv\u011btlen\u00ed dosahuje hodnot Ra 70 – 90, \u010d\u00edm\u017e m\u00e1 jedno z nejre\u00e1ln\u011bj\u0161\u00edch pod\u00e1n\u00ed barev.Na co byste si tedy p\u0159i koupi \u017e\u00e1rovky m\u011bli d\u00e1t pozor? Ur\u010dit\u011b na barvu sv\u011btla. P\u0159\u00edli\u0161 \u017elut\u00e9 sv\u011btlo zhor\u0161uje koncentraci a nam\u00e1h\u00e1 o\u010di. Zm\u011b\u0159te si tak\u00e9 prostor ve sv\u00edtidle a dle toho vhodn\u011b zvolte rozm\u011bry. V\u011bt\u0161ina LED osv\u011btlen\u00ed je konstruov\u00e1na na nap\u00e1jen\u00ed 230 V, ale pozor najdou se i \u017e\u00e1rovky na 12 V. Ujist\u011bte se tak\u00e9 jakou velikost z\u00e1vitu nebo patice pot\u0159ebujete. Pokud jste i tak bezradn\u00ed, neost\u00fdchejte se a zeptejte se obsluhy, ta v\u00e1m jist\u011b r\u00e1da porad\u00ed.                                                                                                                                                                                                                                                                                                                                                                                        4\/5 - (12 votes)        "},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Jak vybrat spr\u00e1vnou LED \u017e\u00e1rovku","item":"https:\/\/www.stavcom.cz\/jak-vybrat-spravnou-led-zarovku\/#breadcrumbitem"}]}]