Yes. We use iftiin for light and I hear people say 'Waxaas baa ifiyay' for something was flashing light or blinking.doesn't it mean light?
As others noted, 'if' is light, and also means world as in 'if iyo aakhiro'. In poetry, the more popular term is 'kaah', which is also a lady's name as in 'kaaha'; the more contemporary word more common in the North is 'laydh', which is borrowed from Eng.what does it mean, ifka and if without the ka