{"id":429,"date":"2026-09-17T10:18:54","date_gmt":"2026-09-17T10:18:54","guid":{"rendered":"https:\/\/indigo-crane-832570.hostingersite.com\/?p=429"},"modified":"2026-10-12T17:21:52","modified_gmt":"2026-10-12T17:21:52","slug":"%ce%b9%cf%83%cf%87%cf%85%cf%83-watt-%ce%ba%ce%b1%ce%b9-%ce%b2%ce%b1%cf%84%ce%bf%cf%89%cf%81%ce%b5%cf%83-watthours-wh","status":"publish","type":"post","link":"https:\/\/mikriarktosgr.gr\/en\/%ce%b9%cf%83%cf%87%cf%85%cf%83-watt-%ce%ba%ce%b1%ce%b9-%ce%b2%ce%b1%cf%84%ce%bf%cf%89%cf%81%ce%b5%cf%83-watthours-wh\/","title":{"rendered":"WATTS AND WATT-HOURS Wh"},"content":{"rendered":"

What is a watt (W): The watt is the unit of measurement for power, which is the rate at which energy is consumed or produced. It tells us how \"fast\" an appliance draws energy. A 50W small refrigerator consumes less power than a 2,000W water heater.<\/p>\n\n\n\n

Formula: Voltage (V) \u00d7 Current (A) = Power (W)<\/strong><\/p>\n\n\n\n

What is a watt-hour (Wh): The watt-hour is the unit of measurement for energy consumed or stored. It tells us how much energy an appliance needs to run for a specific amount of time, or how much energy a battery can hold.<\/p>\n\n\n\n

Formula: Power (W) \u00d7 Time (h) = Energy (Wh)<\/strong><\/p>\n\n\n\n

Consumption example:<\/strong><\/p>\n\n\n\n

DEVICE<\/th>Watts<\/th>Use Hours<\/th>Consumption<\/th><\/tr><\/thead>
LED Lights<\/td>10W<\/td>5 hours<\/td>50Wh<\/td><\/tr>
12v Fridge<\/td>45W<\/td>24 hours with interruptions<\/td>~400Wh<\/td><\/tr>
Laptop<\/td>60W<\/td>3 hours<\/td>180Wh<\/td><\/tr>
Cellphone Charger<\/td>20W<\/td>2 hours<\/td>40Wh<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Autonomy example:<\/strong> <\/p>\n\n\n\n

If you have a 100Ah battery at 12V, the stored energy is: 100Ah \u00d7 12V = 1,200Wh<\/strong><\/p>\n\n\n\n

See also \u03a5\u03a0\u039f\u039b\u039f\u0393\u0399\u03a3\u03a4\u0397 \u0391\u039d\u0391\u0393\u039a\u03a9\u039d \u0395\u039d\u0395\u03a1\u0393\u0395\u0399\u0391\u03a3<\/a> to calculate the battery you need.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

\u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03b2\u03b1\u03c4 (W):\u00a0\u03a4\u03bf \u03b2\u03b1\u03c4 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03bc\u03ad\u03c4\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c4\u03b7\u03c2\u00a0\u03b9\u03c3\u03c7\u03cd\u03bf\u03c2, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03c4\u03bf\u03c5 \u03c1\u03c5\u03b8\u03bc\u03bf\u03cd \u03bc\u03b5 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ae \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03c4\u03b1\u03b9 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1. \u039c\u03b1\u03c2 \u03bb\u03ad\u03b5\u03b9 \u03c0\u03cc\u03c3\u03bf \u201c\u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1\u201d \u03c4\u03c1\u03b1\u03b2\u03ac\u03b5\u03b9 \u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1 \u03bc\u03b9\u03b1 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ae. \u0388\u03bd\u03b1 \u03c8\u03c5\u03b3\u03b5\u03b9\u03ac\u03ba\u03b9 50W \u03ba\u03b1\u03c4\u03b1\u03bd\u03b1\u03bb\u03ce\u03bd\u03b5\u03b9 \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b9\u03c3\u03c7\u03cd \u03b1\u03c0\u03cc \u03ad\u03bd\u03b1\u03bd \u03b8\u03b5\u03c1\u03bc\u03bf\u03c3\u03af\u03c6\u03c9\u03bd\u03b1 2.000W. \u03a4\u03cd\u03c0\u03bf\u03c2:\u00a0\u03a4\u03ac\u03c3\u03b7 (V) \u00d7 \u0388\u03bd\u03c4\u03b1\u03c3\u03b7 (A) = \u0399\u03c3\u03c7\u03cd\u03c2 (W) \u03a4\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b2\u03b1\u03c4\u03ce\u03c1\u03b1 (Wh):\u00a0\u0397 \u03b2\u03b1\u03c4\u03ce\u03c1\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 […]<\/p>\n","protected":false},"author":1,"featured_media":809,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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