本帖最后由 joeqiu88 于 2015-10-20 14:17 编辑
选项一:
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Nichia NVSL219BT-V1 【90 CRI】
Specifications: - Nichia Code: NVSL219BT-SW45/D220 4745-5310K, 90 CRI
- 4745-5310K Color Temperature
- 90 CRI
- SW45 Tint
http://www.mtnelectronics.com/in ... 0_94&product_id=262
选项二:
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Nichia NVSW219CT 【80+ CRI】
LED Specifications: - Nichia NVSW219CT "219C" LEDs
- D280 Flux Bin
- R8000 CRI Rank (~80 CRI)
- 5000K 7-step MacAdam centered ellipse temperature
- Low vF allows for tons of output and easy regulation, even at high amps
- Similar output to an high-bin cool-white XP-G2, but with much better CRI and tint; also easier to hit 5A+ due to the extremely low vF requirement(这句不明白!!VF低了,所以怎样?)
http://www.mtnelectronics.com/in ... 0_94&product_id=589
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数据对比,简言之就是:
219B 5000K左右(虽然表格里标注是暖色),CRI=92, 光效略低,205lm@700ma
219C 5000K左右,CRI=90, 光效比较高,280lm@700ma (一来219C本来就高过219B,二来CRI较低)
而E2LAA-A的stock led如图:
目测XPE
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我的目的是把E2LAA-A (KE1B)的原配LED改成日光色高演色性的LED。
CRI80,CRI92选哪个呢?
为原配XPE设计的TIR透镜能匹配219么?
我估计219C的Vf低于XPE,这是否意味着换了219之后会得到更大的驱动电流----更高的运行功率?
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