nā diode ma ka ʻāpana semiconductor like. Ma o ka hoʻonohonoho kiʻekiʻe-density, ua hoʻomaikaʻi nui ʻia ka mālamalama a me ka hoʻohana ʻana i nā kukui, a he mālama mana loa hoʻi. Ma waho aʻe o kāna hana ma ke ʻano he kukui uila, hiki ke hoʻohana ʻia kēia kukui kī ma ke ʻano he kukui pilikia, he mea maʻalahi loa ia. Eia kekahi, ua hoʻolālā ʻia ka ʻeke ma ke kukui kī me kahi mea wehe ʻōmole, hiki ke hoʻokō i nā pono o ka hoʻohana waho a mālama i kahi no ka lawe ʻana i nā mea hana. Eia kekahi, he magnet ikaika kēia kukui kī ma ke kua, hiki ke hoʻopili ʻia ma ka metala, he mea maʻalahi loa ia no ka hana a me ka mālama ʻana. Ma waho aʻe o ka maʻalahi o ka lawe ʻana, hiki ke lawe maʻalahi ʻia ke kukui kī, kau ʻia ma kahi kaulahao kī a waiho ʻia i loko o kahi ʻeke no ka hoʻohana maʻalahi i kēlā me kēia manawa. He mea maʻalahi loa hoʻi ka hoʻohana ʻana, e kaomi wale i ke kuapo e hoʻā. I ka manawa like, kiʻekiʻe loa ke kūpaʻa o kēia kukui kī. ʻO ka loaʻa ʻana o kahi kukui kī maikaʻi e hiki ai ke hoʻomaʻamaʻa i ke ola o nā kānaka, a hiki iā ia ke hoʻomālamalama i kou ala i kēlā me kēia manawa, ma nā wahi āpau, e ʻae iā ʻoe e hana me nā kūlana like ʻole me ka mālie. I ka pōkole, he mau hana pono kēia kukui kī hao alumini a me ka plastic e like me ka ʻenehana kukui COB, kukui pilikia, mea wehe ʻōmole ma ka ʻeke, a me ka magnet ikaika ma ke kua. He kūpono loa ia no ka poʻe e pono e lawe i nā mea hana kukui me lākou. Inā he mea makemake i nā haʻuki waho ʻoe a he kanaka ʻoihana paha e hele ana i ka makahiki holoʻokoʻa, he kukui kī hao pono a maʻalahi hoʻi ia.