Nau'in wutar lantarki na transistor na yanzu yana tashi da sauri kuma yana iya kammala aikin walda a cikin ɗan gajeren lokaci, tare da ƙaramin yanki da zafi ya shafa kuma ba ya da ɗanɗano yayin aikin walda. Ya fi dacewa da madaidaicin walda, kamar wayoyi masu kyau, masu haɗin baturi, ƙananan lambobin sadarwa na relays da foils na ƙarfe.