lookin good. good work adding more lights, but any farther than 4 inches away and your really losing tons of lumens. There are factors that can effect the safety distance for bulbs, like room temp and humidity and ventilation. if your getting burns at 2 inches it may have to do with those factors. you should just test your bulbs to find the best distance, move them like half inch closer every day until you notice any slight sign of burn and then pull it back a half inch and thats your perfect distance. goal is to get them as close as possible without burning.