i have done a risk assessment which i will attach to this blog. the out come of doing this risk assessment was that the light change is safe enough for us to do our self s it just now depends on price and the quickest way to carry it out. if i and the other electrician do it the company will then be without an electrician for the duration of the LED change, so that's another things to consider unless we can do it out of hours but then we would have to be payed time and a half for the out of hours work and that means we can still do normal duties during the day.