Kugaragara birakomeye kandi bigezweho;Irakwiriye kuri moteri ya mashanyarazi, amagare azunguruka, ibimoteri, nibindi;Ikoresha lensike ya optique ya PMMA kugirango ikwirakwize urumuri na moteri-yo mu rwego rwo hejuru LED;Biteranijwe kumodoka (ibereye diameter yo hanze 44-55mm), hamwe nibikorwa byamahembe.
Kelly 
