Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Te whakawhiti: He rerekē ngā huarahi o ngā kaiwhakaputa rerekē ki te whakatinana i ēnei kaupae. Ka whakamahia e ngā pūreretā LED he rārangi rārangi o ngā diodes-emitting-light hei "tuhi" i te marama ki runga i te puoro. Ko te toner kei runga i te parahi, i te kirihou ranei, na ka haere te pepa i roto i te huihuinga whakakotahi, ka rewa nga matūriki o te toner. Ka taea pea te kore e utua te pepa. Ka taea e te pūhui te oumu infrared, he takai pēhanga whakawera, (i runga i etahi tino tere, tā utu nui) he rama rama xenon. Ko te tukanga whakawera e haere ana i roto i te pūreretā taiaho ina te mana tuatahi kua tonoa ki te pūreretā kei roto i te nuinga o te whakawera i te huānga fuser.  Pātai: He aha te momo oumu ka taea te whakamahi i te pūhui?
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