matou fa'asa'o ma fa'apipi'i a matou uaea lelei. O lenei uaea e faʻaaogaina mo se faʻataʻitaʻiga o filaments i lamepa halogen. o tatou uaea tungsten ua gaosia le malamalama i moli incandescent talu mai le 1990. Ma o aso nei, o loʻo faʻamalamalamaina pea a tatou metals refractory le ala. Mo se faʻataʻitaʻiga, i lamepa halogen, lamepa faʻasalalau maualuga poʻo LED.