Ko e Liliu Fakamamani Lahi ʻi he Maama ʻo e Hala

ʻI he fefaʻuhi ʻa mamani mo e fakautuutu ʻo e fie maʻu ivi mo e fie maʻu fakavavevave ke fakasiʻisiʻi ʻa e kaponi, ʻoku sivisiviʻi ʻa e sekitoa kotoa pe ki he ola lelei. ʻOku fakafofongaʻi ʻe he maama hala fakakolo, ko ha ngaue mahuʻinga ka ʻoku faʻa ʻikai fakatokangaʻi, ha faingamalie lahi. ʻI he ngaahi taʻu lahi, kuo ulo ʻa e langi ʻo hotau ngaahi kolo ʻaki ʻa e lanu amber angamaheni ʻo e ngaahi maama high-pressure sodium (HPS). Ko e ngaahi naunau ko ʻeni ko e fanga hoosi ngaue ia ʻo e maama ʻi he hala, ʻa ia naʻe fakamahuʻingaʻi ʻi heʻenau tolonga fuoloa ʻi hono fakafehoanaki ki he ngaahi tekinolosia kimuʻa pea mo ʻenau malava ke hu atu ʻi he kakapu. Neongo ia, kuo ʻomi ʻe he senituli 21 ha poleʻi malohi: ko e Light Emitting Diode (LED). Ko e liliu mei he HPS ki he LED ʻoku ʻikai ko ha fakalakalaka fakatekinolosia pe; Ko ha liliu mahuʻinga ia ʻi he founga ʻoku tau fakahoko ai ʻa e ngaahi fale fakapuleʻanga, potupotutatau ʻa e ngaue, fakamole, mo e fatongia ʻo e ʻatakai. ʻOku fakaʻaliʻali ʻe he fakafehoanaki fakaʻauliliki ko ʻeni ʻa e ngaahi fakangatangata fakatekinikale, ngaahi moʻoniʻi meʻa ʻoku fakalele mo e ngaahi lelei taimi loloa ʻo e ongo tekinolosia fakatouʻosi, ʻo fakahaaʻi ai ʻa e ʻuhinga kuo hoko ai ʻa e ngaahi maama hala LED ko e fili taʻeveiveiua ki he ngaahi kolo ʻo onopooni, tuʻuloa ʻoku fakataumuʻa ke aʻusia ʻa e ngaahi taumuʻa ki hono fakatolonga ʻo e ivi mo hono fakasiʻisiʻi ʻo e emission ʻo e ʻea.

Ko e ha ʻa e ngaahi maama high-pressure sodium (HPS) pea ko e ha ʻoku manakoa ai?

ʻOku kau ʻa e ngaahi maama sodium malohi ki he famili ʻo e ngaahi maʻuʻanga maama ʻo e high-intensity discharge (HID). ʻOku nau ʻomi ʻa e mama ʻaki hono fakahu ha ʻuhila ʻi ha tiupi ʻumea ʻoku ʻi ai ha tuifio ʻo e mercury, sodium, mo e kasa xenon. ʻI he taimi ʻoku fiefia ai ʻa e sodium, ʻoku ne fakatupu ʻa e maama lanu engeenga monochromatic. ʻI ha vaeuaʻi senituli tupu, naʻe hoko ʻa e ngaahi maama HPS ko e fili lahi taha ki he maama hala ʻi he funga ʻo e mamani, pea ʻi ha ʻuhinga lelei. Naʻa nau ʻomi ha fakalakalaka lahi ʻi he ola lelei ʻi heʻenau ngaahi maama kimuʻa, ʻa e mercury vapor lamps, ʻo maʻu ai ʻa e 80 ki he 140 lumens ki he watt. Naʻe hoko ʻeni ko ha fili lelei ki honau taimi. ʻIkai ngata ai, ʻoku siʻisiʻi ange ʻa e fakamovetevete ʻe he ngaahi momoʻi meʻa ʻo e vai, ʻo nau maʻu ai ha ongoongo lelei ʻi he kakapu mo e sinou. Naʻe hoko ʻeni ko ha fili falalaʻanga ke fakapapauʻi ʻoku ʻi ai ha tuʻunga ʻo e sio ʻi he ngaahi tukunga kovi ʻo e ʻea. Ko ʻenau moʻui loloa, ʻa ia ʻoku aʻu ki he houa ʻe 24,000, ko ha meʻa mahuʻinga ia ʻe taha, ʻo fakasiʻisiʻi ai ʻa e tuʻo lahi ʻo e liliu ʻo e mama ʻi hono fakafehoanaki ki he ngaahi meʻa kehe ʻoku fakaʻaongaʻi ʻe he maama pe fluorescent. Neongo ia, ʻi he fakalakalaka ʻa e tekinolosia ʻo e mama mo ʻetau mahino ki he visone ʻa e tangata, kuo faingataʻa ke tukunoaʻi ʻa e ngaahi tonounou ʻo e tekinolosia HPS.

Ko e ha ʻa e ngaahi tefitoʻi tonounou ʻo e ngaahi maama HPS ʻi he maama ʻo e hala?

Neongo ʻenau tuʻukimuʻa fakahisitolia, ʻoku faingataʻaʻia ʻa e ngaahi maama HPS ʻi ha ngaahi fehalaaki mahuʻinga ʻoku ne ʻai ke fakautuutu ʻenau taʻefeʻunga mo e ngaahi tuʻunga ʻo e maama ʻo onoponi. Ko e ʻuluaki palopalema lahi ko e ʻikai lelei ʻa e mama, faitatau mo e mapuleʻi. Ko e ngaahi maama HPS ko ha maʻuʻanga maama omnidirectional, ʻa ia ko hono ʻuhinga ʻoku nau tuku atu ʻa e maama ʻi he feituʻu kotoa pe. Ke fakahangatonu hifo ʻa e maama ko ʻeni ki he hala, kuo pau ke fakafalala ʻa e ngaahi mama ki he ngaahi meʻa fakaʻata lalahi. ʻOku ʻikai ke ola lelei ʻa e founga ko ʻeni. ʻOku mole ʻa e mama ʻi loto ʻi he meʻa ʻoku hoko, pea ʻoku faʻa maʻolunga ʻaupito ʻa e maama ʻi lalo ʻi he mama—taimi ʻe niʻihi ʻoku laka hake ʻi he 40 lux ʻi he ngaahi hala hono ua, ʻa ia ʻoku hoko ia ko ha maama maumau ʻaupito. ʻI he tafaʻaki ʻe taha, ʻi he vaeuaʻanga malie ʻi he vahaʻa ʻo e ongo pou hoko mai, ʻe lava ke holo ʻa e maama ki he 40% ʻo e tumutumu ko ia, ʻo fakatupu ai ha ngaahi feituʻu fakapoʻuli ʻoku ne uesia ʻa e malu. ʻOku ʻuhinga ʻa e ʻikai faitatau ko ʻeni ʻoku fakamoleki ʻa e ivi ʻi he ngaahi feituʻu ʻoku fuʻu maama kae ʻikai lava ke fakamaama feʻunga ʻa e niʻihi kehe. Ua, ʻoku faingataʻaʻia ʻaupito ʻa e ola lelei fakalukufua ʻo e maama HPS ʻe he palani ʻo e fixture. Ko e lelei ʻo e emitter ʻo ha maama HPS angamaheni ʻoku fakafuofua pe ki he 50-60%, ʻa ia ko e meimei 30-40% ʻo e maama ʻoku maʻu ʻoku fihia ia ʻi loto ʻi he maama pe absorbed ʻe he reflector. Ko ha maumau mahuʻinga ʻeni ʻoku tupu mei he tekinolosia. Fakaʻosi, neongo ʻoku aʻu ki he houa ʻe 24,000 ʻa e moʻui ʻa e ngaahi maama HPS, ʻoku nounou ange ʻenau moʻui. ʻOku nau ongoʻingofua ʻa e fetoʻaki ʻo e voltage mo e ʻatakai faingataʻa ʻo ha pou hala, ʻa ia ʻoku kau ai ʻa e tetetete, mafana ʻo e ʻea, mo e ʻea. Ko hono ola, ʻe lava ke laka hake ʻi he 60% ʻa e taʻelavameʻa fakataʻu ʻo hono fokotuʻu ʻo e HPS, ʻo iku ki he toutou telefoni ki hono tokangaʻi ʻo e ngaahi meʻa ʻoku ne fakasiʻisiʻi ʻa e ivi.

Ko e ha ʻa e ngaahi maama hala LED pea ʻoku nau fakaleleiʻi fefe ʻa e ngaahi palopalema ko ʻeni?

ʻOku fakaʻaongaʻi ʻe he ngaahi maama hala LED ʻa e diodes ʻoku ʻomi ʻa e mama ko honau maʻuʻanga mama. ʻOku ʻikai hange ko e HPS, ko e LEDs ko ha ngaahi meʻangaue semiconductor fefeka ʻoku ne ʻomi ʻa e mama ʻo fakafou ʻi he electroluminescence. ʻOku liliu ʻa e faikehekehe mahuʻinga ko ʻeni ʻi he fisiki ki ha ngaahi lelei lahi. Ko e mahuʻinga taha ʻo e ngaahi meʻa ni ko e moʻui fuoloa. ʻOku fakafuofuaʻi ʻa e maama hala LED tuʻunga maʻolunga ki ha moʻui lelei ʻo e houa ʻe 50,000 ki he 100,000 pe lahi ange—ʻoku fuʻu tolonga ange ia ʻi he moʻui ʻo ha maama HPS. ʻOku hanga ʻe he moʻui loloa ko ʻeni ʻo fakaleleiʻi fakahangatonu ʻa e ngaahi fakamole maʻolunga ki hono tokangaʻi mo e lahi ʻo e maumau fekauʻaki mo e HPS, ʻo fakaʻata ai ʻa e ngaahi kolo ke fokotuʻu pea fakangaloʻi ʻenau ngaahi maama ʻi ha ngaahi taʻu. ʻIkai ngata ai, ʻoku kehe ʻaupito ʻa e tuʻunga ʻo e maama ʻoku faʻu ʻe he LEDs. ʻI he fakahokohoko fakamotuʻalea ʻo e lanu (CRI) ʻe lava ke faingofua ke aʻu ki he 70 pe 80, pea faʻa maʻolunga ange, ʻoku lahi ʻa e maama LED pea faʻifaʻitaki ofi ki he maama fakanatula ʻo e ʻaho. ʻI he malumalu ʻo e maama LED, ʻoku longomoʻui mo moʻoni ʻa e ngaahi lanu. ʻOku ʻikai ko ha fakaleleiʻi fakaʻofoʻofa pe ʻeni; ʻoku ʻi ai hono ngaahi nunuʻa lahi ki he malu. Ko e malava ko ia ʻa e mata ʻo e tangata ke ʻiloʻi ʻa e faikehekehe, ʻiloʻi ʻa e ngaahi meʻa, mo e tali ki he ngaahi fakatuʻutamaki ʻe ala hoko ʻoku fekauʻaki hangatonu ia mo e tuʻunga lelei ʻo e mama. ʻOku fakaʻata ʻe he CRI maʻolunga ange ʻo e LEDs ʻa e kau fakaʻuli mo e kau lue lalo ke nau sio lelei ange mo tali vave ange, ʻo fakaleleiʻi ʻa e malu fakalukufua ʻi he hala ʻi ha founga ʻoku ʻikai lava ke fakatataua ʻe he maama monochromatic ʻo e HPS.

ʻOku ʻomi fefe ʻe he ngaahi maama hala LED ʻa e tuʻunga lelei ange mo e mapuleʻi ʻo e mama?

ʻOku mahulu atu ʻa e ngaahi lelei ʻo e LEDs ʻi he moʻui mo e lanu ki he uho ʻo e founga ʻoku puleʻi mo tataki ai ʻa e mama. Ko e meʻa liliu taha ko honau natula ʻo e fakahinohino. ʻOku ʻikai hange ko e ngaahi maama HPS ʻoku ne tuku atu ʻa e maama ʻi he feituʻu kotoa pe, ʻoku fakanatula ʻa e LEDs, ʻo angamaheni ʻaki hono tuku mai ʻo e maama ʻi ha sipinga tikili ʻe 180. ʻOku ʻuhinga ʻeni ʻoku fakataumuʻa fakanatula pe ʻa e mama ki he feituʻu ʻoku fie maʻu ai—ki he hala. ʻOku fakaʻata ʻe he ʻulungaanga directional ko ʻeni, fakataha mo e ʻenisinia tonu ʻa e secondary optics (lenses), ke mapuleʻi taʻefakatataua ʻa e tufaki ʻo e mama. ʻE lava ke faʻu ʻe he kau faʻu maama ha ngaahi sipinga pau ʻo e ʻakau ʻoku fenapasi lelei mo e geometry ʻo ha hala, ʻo fakapapauʻi ʻoku fokotuʻu tonu ʻa e mama ʻi he hala hala pea ʻikai maumauʻi ʻi he tafaʻaki ki muʻa ʻo e fale, ʻapi ʻi mui, pe langi ʻi he poʻuli. ʻOku toʻo heni ʻa e palopalema ʻo e fuʻu maama ʻi lalo ʻi he fuʻu pou mo e siʻisiʻi ʻa e maama ʻi he vahaʻa ʻo e ngaahi pou, ʻo fakatupu ai ha ʻatakai ʻo e maama ʻoku tatau mo malu ange. ʻE lava ke fakaleleiʻi lelei ʻa e tufakiʻanga maama ʻo ha maama hala LED ke aʻusia ʻa e ngaahi tuʻunga ʻo e maama ʻi he hala kotoa, ʻo fakalahi ʻa e sio mo e lavameʻa fakatouʻosi. ʻIkai ngata ai, koeʻuhi ʻoku fakataumuʻa tonu ʻa e mama, ʻoku maʻolunga ange ai ʻa e lelei fakalukufua ʻo e mama. ʻOku ʻikai mole ʻa e 30-40% ʻo e maama ʻi loto ʻi he naunau, ka ʻoku faʻa aʻusia ʻe he LED ʻa e luminaire efficiencies ʻo e 90% pe lahi ange, ʻa ia ko hono ʻuhinga ko e meimei kotoa ʻo e maama ʻoku faʻu ʻe he LEDs ʻoku iku ʻo fakamaama ʻa e taumuʻa naʻe fakataumuʻa ki ai.

Ko e ha ʻoku lelei ange ai ʻa e ivi mo e anga fakakaumeʻa ki he ʻatakai ʻa e ngaahi maama hala LED?

Ko e ivi lelei ʻo e ngaahi maama hala LED ko e taha ia ʻo e ngaahi ʻuhinga malohi taha ki hono fakaʻaongaʻi lahi. ʻOku maʻu ʻa e lavameʻa ko ʻeni mei hono fakatahaʻi ʻo e ngaahi moʻoniʻi meʻa: maʻuʻanga tokoni maʻolunga (lumens per watt mei he LED chip), maama maʻolunga (siʻisiʻi ʻa e mole fakaʻofoʻofa), mo e ngaahi meʻa fakapotopoto. ʻE lava ke maʻu ʻe ha polokalama HPS ʻa e lumens ʻe 100 ki he watt mei he mama, ka ʻi he hili hono fakamatalaʻi ʻo e mole ʻa e reflector, ʻoku holo ʻaupito ʻa e ola lelei ʻo e polokalama. ʻOku ʻomi ʻe he polokalama LED, ʻa ia ʻoku kamata ʻaki ha chip ʻe lava ke maʻu ai ha lumens ʻe 150 ki he watt pea siʻisiʻi ʻaupito ʻa e mole ʻi he optics, ʻo ʻomi ha maama lahi ange ki he hala ʻi he watt kotoa pe ʻo e ʻuhila ʻoku fakaʻaongaʻi. ʻOku ʻuhinga ʻeni ki hono fakahaofi fakahangatonu ʻo e ivi ʻo e 50% ki he 70% ʻi hono fakafehoanaki ki he HPS, ko ha fakasiʻisiʻi ʻoku ʻi ai hono uesia lahi ʻo e patiseti ngaue ʻa e kolo mo e kaponi. ʻI heʻetau fakaʻaongaʻi ʻa e ʻuhila, ʻoku tau fakasiʻisiʻi ai ʻa e tukuange ʻo e ngaahi kasa fakatuʻutamaki hange ko e CO2 mo e SO2 mei he ngaahi fale ʻuhila, ʻo tokoni fakahangatonu ki he ngaahi taumuʻa fakafonua mo fakaemamani lahi ke fakasiʻisiʻi ʻa e ʻuhila. Neongo ia, ʻoku mahulu atu ʻa e ngaahi lelei ʻo e ʻatakai ʻi hono fakahaofi ʻo e ivi. ʻOku ʻi he ngaahi maama HPS ʻa e mercury, ko ha neurotoxin malohi, ʻa ia ʻoku silaʻi ʻi loto ʻi he tiupi ʻo e arc. ʻI he taimi ʻoku aʻu ai ʻa e ngaahi maama ko ʻeni ki he ngataʻanga ʻo ʻenau moʻui, kuo pau ke tokangaʻi kinautolu ko ha veve fakatuʻutamaki. Kapau te nau maumau ʻi he ngoueʻanga pe liʻaki taʻetotonu, te nau lava ʻo tukuange ʻa e mercury ki he ʻatakai, ʻo fakaʻuliʻi ai ʻa e kelekele mo e vai. ʻI he tafaʻaki ʻe taha, ʻoku fakaʻaongaʻi ʻe he ngaahi maama hala LED ʻa e tekinolosia fefeka pea ʻoku ʻikai ke ʻi ai ha mercury pe ngaahi meʻa fakatuʻutamaki kehe. ʻOku nau recyclable kakato pea ʻoku nau fakafofongaʻi ha maʻuʻanga maama anga fakakaumeʻa moʻoni ki he ʻatakai. ʻOku fakaʻau ke toe mahuʻinga ange ʻa e tafaʻaki ko ʻeni ʻo e maama "lanu mata" ʻi hono fakaʻaongaʻi ʻe he ngaahi kolo ʻa e ngaahi tuʻutuʻuni fefeka ange ki he tolonga.

ʻOku anga fefe hono ʻoange ʻe he ngaahi polokalama puleʻi poto ʻa e ngaahi maama hala LED ki ha tafaʻaki?

Ko ha lelei fakaʻosi ʻo e ngaahi maama hala LED ko ʻenau fenapasi mo e ngaahi polokalama fakaonopooni ʻo e puleʻi ʻo e poto. ʻOku ʻi ai ha palopalema mahuʻinga ʻo e ngaahi maama HPS ʻi he tafaʻaki ko ʻeni: ʻoku fie maʻu ha taimi mafana ʻo ha ngaahi miniti siʻi ke aʻu ki he maama kakato mei he kamata momoko pea naʻa mo ha taimi ke toe fakamokomokoʻi kimuʻa pea toki lava ke toe tutu. ʻOku hanga ʻe he meʻa ni ʻo ʻai ha faʻahinga founga ʻo e puleʻi ʻi he taimi moʻoni ʻoku ʻikai malava ke fai. Ka neongo ia, ʻoku aʻusia ʻe he ngaahi maama hala LED ʻa e maama kakato ʻi he taimi pe ko ia ʻoku fakamoʻui ai, ʻo ʻikai ha vahaʻataimi fakamafana. Ko e meʻa ko ʻeni ʻoku malava ko ʻeni ʻi he taimi pe ko ia ʻoku ne fakaava ʻa e tuʻunga kakato ʻo e maama ʻo e kolo poto. ʻE lava ke faingofua hono fakatahaʻi kinautolu mo e photocells, motion sensors, mo e central management systems (CMS) ʻoku fetuʻutaki ʻi he wireless networks. ʻOku fakaʻata ʻe he meʻa ni ha ngaahi founga fakasiʻisiʻi ʻo e ivi. Hange ko ʻeni, ʻe lava ke fakasiʻisiʻi ʻa e mama ki he 30% pe 40% lolotonga e ngaahi houa poʻuli ʻi he taimi ʻoku siʻisiʻi ai ʻa e fefonongaʻaki, pea ulo leva ki he 100% ʻi he taimi ʻoku fakatokangaʻi ai ʻe ha sensor ha lue lalo, heka pasikala, pe meʻalele. ʻE lava ke fakahaofi ʻe he maama adaptive ko ʻeni ha toe 30-40% ʻi he ivi ʻo mahulu hake ʻi he fakahaofi mei he fakaleleiʻi ʻo e LED. ʻIkai ngata ai, ʻoku ʻomi ʻe he CMS ʻa hono vakaiʻi taimi moʻoni ʻo e maama fakafoʻituitui, lipooti he taimi pe ko ia ʻa e ngaahi maumau pea fakaʻata ke tokangaʻi ʻa e ngaahi maama kuo vela.

LED Street Lights vs. High-Pressure Sodium

ʻOku fakamatalaʻi fakanounou ʻe he tepile ko ʻeni ʻa e ngaahi faikehekehe mahuʻinga ʻi he vahaʻa ʻo e ngaahi maama hala LED mo e ngaahi maama sodium angamaheni, ʻo fakamamafaʻi ʻa e ngaue maʻolunga ange ʻo e tekinolosia LED ʻi he meimei meʻafua kotoa pe.

Ko hono fakaʻosi, ko e fakafehoanaki ʻi he vahaʻa ʻo e ngaahi maama hala LED mo e ngaahi maama sodium ʻoku fuʻu tafaʻaki taha. Neongo naʻe fakahoko ʻe he HPS ʻa ʻene taumuʻa ʻi ha ngaahi taʻu lahi, ka ko hono ngaahi fakangatangata fakatekinikale—kovi hono fakaʻaongaʻi ʻo e lanu, tufaki ʻo e mama ʻoku ʻikai lelei, fakatuʻutamaki ʻo e ʻatakai, mo e ʻikai fenapasi mo e ngaahi meʻa ʻoku puleʻi ʻi onoponi—ʻoku ne ʻai ia ko ha tekinolosia ʻo e kuohili. ʻOku fakaleleiʻi ʻe he ngaahi maama hala LED ʻa e ngaahi tonounou kotoa ko ʻeni, ʻo ʻoatu ha founga ʻoku lelei ange, tolonga loloa, malu ange, mo falalaʻanga ange ki he ʻatakai. ʻOku mahino ʻa e fili ki ha kolo pe kolo pe kolo ʻoku fie maʻu ke fakasiʻisiʻi ʻa e fakamole, holoki ʻa e carbon footprint, pea fakaleleiʻi ʻa e tuʻunga ʻo e moʻui ʻa hono kakai ʻo e fonua: ko e kahaʻu ʻo e maama hala ko e LED.

Ngaahi Fehuʻi ʻOku Faʻa ʻEke Fekauʻaki mo e LED mo e HPS Street Lights

ʻE lava nai ke u fetongi fakahangatonu ha foʻi ʻuhila HPS ʻaki ha LED ʻi heʻeku maama hala lolotonga?

ʻI he ngaahi meʻa lahi, ʻoku ʻikai fokotuʻu atu ke fetongi pe ʻa e maama HPS ʻaki ha LED "koane cob" pe foʻi ʻuhila sikuli. ʻOku kehe ʻaupito ʻa e optics, heat sinking, mo e fakaʻuli ʻuhila. Ke maʻu ha retrofit totonu mo malu, ʻoku totonu ke ke fetongi ʻa e maama kotoa ʻaki ha maama hala LED kuo faʻu pe fakaʻaongaʻi ha naunau LED retrofit ʻoku feʻunga mo hoʻo naunau pau, ʻa ia ʻoku ne fetongi ʻa e fakatahaʻanga fakaʻata mo e fakaʻuli.

ʻOku lelei ange ʻa e maama lanu moli mei he ngaahi maama HPS ki he kakapu ʻi he maama LED hinehina?

ʻI he hisitolia, naʻe pehe ʻoku lelei ange ʻa e maama lanu engeenga/lanu moli ʻo e HPS ki he hu mai ʻa e kakapu. Neongo ia, ʻoku faʻa fakaʻaongaʻi ʻe he ngaahi maama hala LED ʻo onoponi ʻa e mafana ʻo e lanu (CCT) ʻo e 3000K pe 4000K, ʻa ia ʻoku potupotutatau. Neongo ʻoku siʻisiʻi ange ʻa e fakamovetevete ʻa e maama lanu engeenga loloa, ka ʻoku faʻa ʻomi ʻe he malohi mo e mapuleʻi ʻo e beam ʻo e LEDs ha sio lelei ange ʻi he kakapu. ʻIkai ngata ai, ʻe lava ke fakamahinoʻi ʻa e ngaahi naunau LED foʻou ʻaki ha "mafana" 2700K-3000K CCT ke fakalahi ʻa e ngaue ʻa e ʻea.

Ko e ha e lahi ʻo e paʻanga ʻe lava ke fakahaofi ʻe ha kolo ʻaki haʻane liliu ki he ngaahi maama hala LED?

ʻOku lahi ʻa e paʻanga. ʻOku faʻa sio ʻa e ngaahi kolo ki ha holoki ʻe 50-70% ʻi he fakamole ʻo e ivi ki he maama hala ʻi he hili pe ʻa e liliu ʻo e LED. ʻI he taimi ʻoku fakatahaʻi ai mo e fakasiʻisiʻi ʻo e fakamole ki hono tokangaʻi (koeʻuhi ko e loloa ange ʻa e moʻui ʻa e LEDs) pea mo e malava ke mapuleʻi ʻa e adaptive dimming, ʻoku faʻa totongi ʻe he fakakatoa ʻo e fakamole ki he ngaue ʻa e ngaue kotoa ʻi loto ʻi he taʻu ʻe 5 ki he 7, hili ia ʻoku hokohoko atu hono fakahaofi ʻe he kolo ʻa e laui miliona ʻi he taʻu.