EF-4 bụ ngwaahịa kachasị na JCT. A na-eji ya na mpaghara mgbasa ozi. Ef-4 na JCT dị ka BMW Mini, smart mana bara uru na ewu ewu. Ndị ahịa na-eji EF-4 mobile LED ụgbọala na-adọkpụ iji kwalite mmemme egwuregwu, iji kwalite nkwalite ụgbọ ala, na ịkwalite ngwaahịa ọhụrụ.

Ndị ahịa si New Zealand na-emepụta ụgbọala na-adọkpụ n'ụzọ nke ha. Ha na-echebe etiti ahụ na nnukwu igbe. Dị iche na mgbasa ozi ọdịnala, ụgbọala na-adọkpụ LED nwere ike igosipụta vidiyo, nke na-agbanwe agbanwe ma mara mma. Ọ na-erite uru dị ukwuu. Biko egbula oge ịkpọtụrụ anyị maka nkọwa ndị ọzọ.