Multiply the square footage of the room by the appropriate number of lumens per square foot for that type of room. Bedrooms require 15 lumens per square foot, hallways need 7.5 lumens per square foot, dining rooms, kitchens and offices need 35 lumens per square foot and bathrooms and parts of rooms that include sinks need 75 lumens per square foot. In this case, multiply 90.67 square feet by the required 35 lumens per square foot in a dining room to calculate that you need about 3,173 lumens to light the dining room. Read more: How to Calculate Lumens Per Room Size | eHow.com http://www.ehow.com/how_7510882_calculate-lumens-per-room-size.html#ixzz1ds0tHOgT Radau pats "Darenas" <paklausk@gmma.com> wrote in message news:ja0988$fgg$1@trimpas.omnitel.net... > nusisneki :) led kiekis kvadraturai apsprendzia. > > gal kas turit normas 1m2 vs liumenu kiekis? > > > Darenas > > "Yvl" <chiornyj@bumer.lt> wrote in message > news:ja087s$dss$1@trimpas.omnitel.net... >> isjungt sviesa visai. nes su tiek lm vis tiek zabalinet reikia... :) >> >> "Darenas" <dare@klausk.lt> wrote in message >> news:j9ubsr$d96$1@trimpas.omnitel.net... >>> irodyk kitaip... kas taupiau? >>> >>> >>> >>> Darenas >>> >>> "Signalizacija" <signalizacija.master@gmail.com> wrote in message >>> news:j9ub6n$c72$1@trimpas.omnitel.net... >>>> Siaip, panasu, kad zmogyus nelabai susigaudo ka ta lempute daro, uztai >>>> ir >>>> nesupranta kam tie liumenai. >>>> Ziuri tik i kazkokias caro ruriko laiku neiaskias lenteles ir >>>> dziaugiasi >>>> susisukes led'us kurie duoda 3x maziau sviesos, bei kalba apie >>>> atsipirkima >>>> :) >>>> >>>> "Dainiushas" <skirdain@gmail.com> wrote in message >>>> news:j9uadt$b06$1@trimpas.omnitel.net... >>>>> http://en.wikipedia.org/wiki/Luminous_efficacy šiaip >>>>> >>>>> On 11/15/2011 08:11 PM, Darenas wrote: >>>>>> jei jus apie tai, tai seniai maciau tam paciam philips puslapi >>>>>> palyginimus: 20w = 4w. >>>>>> maniau kalba eina apie liumenu isgavima is 1W. >>>>>> eikit jus viktorinas kurt... :) >>>>>> >>>>>> >>>>>> Darenas >>>>>> >>>>>> >>>>>> "Dainiushas" <skirdain@gmail.com> wrote in message >>>>>> >>>> >>>> >>> >