With 35mm or 50mm slats and neer 180 degree tilt these blinds are the closest a Venetian blind can come to give a blackout effect in your room. The Wood slats themselves do not allow any light through however seepage can occur around the edges and through the slats. What we recommend for that full blackout feel is installing outside the recess of the window to give yourself maximum light blockage. Or why not pair these blinds with a pair of blackout curtains or one of our blackout roller blinds.
We have lots of options to choose from, colours and tapes the choices are endless. All our blinds are covered by our 4-year warranty so you can bet our blinds are built to last.