Browse Forums Lighting + Lighting Design Our standard double-glazed window is tested to achieve, Rw 34, and can be glazed to suit Rw 39. The price is good too... 3 9477 Building Standards; Getting It Right! 1. optional, you can but normally just use the earth from the main switch board 2. should be enough but the distance determines voltage drop - sparky should work it… 1 28819 I have a really long hallway which is 1100mm W x 11500mm L I would appreciate if anyone can give suggestions to light it up with Linear LED lights that goes from wall to… 0 8820 |