Barka da zuwa BULBTEK, mu masana'anta ne na shekaru 12+ don kwan fitila ta LED ta atomatik. A yau ina so in yi magana game da gwaje-gwajen fitilun fitilun LED. Mutane da yawa na iya mamaki cewa me ya sa masu kaya ke yin gwaje-gwaje da yawa don fitilun fitilun LED? Shin wajibi ne? A ganina, eh, lallai ya zama dole...
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