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m,所以半径为13mm。1.2米的t8灯管,其表面积为:π*1.3+120=490cm2,我们知道led散热器的表面积通常要求60cm2/w。,所以这种半铝管只能散8w左右的热量。而t
http://blog.alighting.cn/xyz8888888/archive/2010/6/22/51931.html2010/6/22 17:54:00
3lux 高height 9m >13lux 有效照射范围 effective illuminated area 高height 6m 10×24㎡
http://blog.alighting.cn/zhansheng/archive/2010/6/22/51689.html2010/6/22 12:24:00
浅的条形沟槽(图4), 图4 中空铝管的半塑半铝的led日光灯灯管 这种半圆柱的表面积为:2πr*h/2=πr*h。对于t8灯管来说,它的直径为26mm,所以半径为1
http://blog.alighting.cn/maoyuhai/archive/2010/6/22/51642.html2010/6/22 10:20:00
6月9日中午13时,由广州光亚法兰克福展览有限公司主办,阿拉丁照明网承办的“南海新光源2010照明产业最新技术及成果高峰论坛“在琶洲国际会展中心a区白云会
https://www.alighting.cn/resource/2010622/V1118.htm2010/6/22 10:13:24
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