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https://www.1point3acres.com/bbs/thread-789547-1-1.html
Ebay的灯带有上述三种LED,每米均为60个,电压有12(逢3可切)/110/220V三种。按卖家指标,12V的5630/3014每灯20-22流明,每米1200-1320,每30CM为378流明。5050/3520每灯9-10/6.5-7.5,每米540-600/390-450,每30CM162-180/117-135。每5米功耗75/72/24W,其中5050效率较低。110V卖家每米7.8W780-840lumin较为可信。1米弯成圆的直径约13吋,下加座即为台灯。
https://www.ebay.com/itm/132904465560?var=432202907323 https://www.ebay.com/itm/383052839021
3528灯带参数如下:Warm White (2800K-3200K),Beam angle(°): 120°,Voltage: DC 12V,每米60灯珠,每3个串接330欧电阻,并联20路,可按每三个剪断。标称电流0.35-0.4A,取0.375A/20得灯珠电流约18.75mA,每米0.375*12=4.5W,标称21-24W /5 Meter,300-420 Lumens/Meter,Lifetime 30,000 Hours,Dimenstion: L500cm x W0.8cm x T0.2cm。取360/60=6lumin符合3528灯珠4-7lumin的指标。台灯可取5/3或99灯珠为1.65米约7.4W600lumin,12V1A电源。
4呎日光灯座叫tombstone因形状类似:https://www.walmart.com/search/?query=G13-F04%20T8%20Light%20Socket%20G13%20? 换LED灯管有两种:plug&play是直接换,原镇流器Ballast还在影响效率;retrofit是把原镇流器去掉,由一头灯座直接接120VAC,注意有的灯管只有一头接电。光谱有3000/4000/5000/6500四种。买新灯的话有可级联的灯连壳卖很便宜,塑料管有奶白透明两种,只是没啥装饰,如Amazon上20W 2200lumin。按Ebay标出信息2400lumin,3528灯珠96个,96×6=576lumin,多半卖家瞎标。如果是5050光亮x3得1728合理,若5630/5730每芯50lumin。48灯珠每路压降3.2*48=153.6V,153.6/1.4142+1.4=110VAC;但升压可支持100-240VAC。典型18W是芯片驱动,24路并联每路12个3528,总计288个流明1728-2304。Amazon上的Barrina驱动是BP2328D单片内带高压MOS输出72V似乎很不错。
另Philips 40WT12为2600lumin,32WT8为3000lumin。
30x24车库可按6-10灯装。1)沿车向排,即宽向为4.5'+7'×3+4.5'@8灯或42"+69"×4+42"@10灯,深向离墙5呎间距10呎,适当避开开门器。或旋转90度,横排离墙5呎间距10呎,两三排6-9灯。
Tiffany台灯:https://item.taobao.com/item.htm?spm=2013.1.0.0.30e22d32iWu4zO&id=536550641248
北欧:https://www.target.com/p/geneva-glass-globe-accent-lamp-brass-lamp-only-project-62-153/-/A-52444099
景泰蓝Cloisonne台灯:https://item.taobao.com/item.htm?spm=a230r.1.14.58.f24212d4WVv8yw&id=537827205981 https://item.taobao.com/item.htm?spm=a230r.1.14.50.f24212d4WVv8yw&id=536880260270 https://item.taobao.com/item.htm?spm=a230r.1.14.33.f24212d4WVv8yw&id=530805350642
民国台灯:https://item.taobao.com/item.htm?spm=2013.1.0.0.378c6022fem74I&id=527824163383
中式吊灯:https://item.taobao.com/item.htm?id=23732472273