1. He poto te ahua o te rama, a he kaha te awe o te tirohanga.
2. Ko nga waahanga nui o te tinana rama ka hangaia i te konumohe mate-maka ana, a ka pakaru te mata ki te puehu, he pai te awangawanga me te aukati i te waikura.
3. Whakamahia te hangarau miihini mata whaanui, kaore he tiimata, me te orite pai.
4. Raihana rima-tau, IP66 whakatauranga parewai.