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Message: <blockquote data-quote="pavithra_uk" data-source="post: 16811854" data-attributes="member: 242676">godak un 5mm led ena bulb wala heat sink nathi nisa evage heat loss eka na kiyala hithanne eth aththataa evath heat wenawa. anyway CFL ekak 50-65 lm/w (calculated with circuit)LED wala 100-120 lm/w calculate karala thiyenne without circuit loss. e nisa led bulb ekak haduwama led driver loss + optics loss nisa 80lm/w wage ganak enne. china led wala 100lm enne na machan. rated lumen gana enne honda quality led wala (cree, osram, philips, samsung wage)mama 7w (1x7 1w leds + 7w driver) dala hadapu bulb ekaka power eka watt meter ekakin check kala. 6.9w e kiyanne driver eka 90% efficient unoth 6.2w thamai led walata yanne. man hithanne 6w wage ganak thamai led walata ganne.</blockquote>

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