Yes, this was also a fear I had. I don't know the colour temperature, but it's seriously cold. It's a lot more directional and does give higher light levels in the floor in front of it but is also a lot more noticeable through our bedroom curtains. So some reduction in output should be ok. Appreciate the comments about not tampering with public street lights, and certainly I will be very careful not to damage it, however the whole of the rest of the street is old Sodium lights still and this light is just outside us and the adjoining house in a narrow tree lined single track road. Daniel Very good graph. I like that. Obviously I don't need to recreate the very narrow 589 nm wavelength spike, a more inclusive general orange glow would be fine. However you are always going to have to chop out a lot of the blue, maybe too much. In terms of this one street light am more concerned about my own sleep pattern, however I do understand there is quite real concerns that while sodium lights somewhat by chance give a nice warm glow that doesn't overly interfer, cold led street lighting is not go for wildlife which is also ######. Daniel