不用念書也可以全答對的歷史考卷寫法~太天才了
COB vs SMD - CandlePowerForums - The Front Page哈哈哈....強!!! I would guess that SMD vs COB, SMD has a lot of other benefits too. Price is always a factor, and if you manufactured LED bulbs, it would be cheaper to use the same SMD LEDs in differing numbers in all of your bulbs than to design each bulb with a specifi...
全文閱讀