Uplighting of trees adds drama and vertical emphasis in a garden lighting scheme. Smaller trees can be effectively lit with low voltage outdoor spotlights and recessed lights. The principal beam angles of low voltage LED lamps are 12, 36 and 60 degrees. If you are uplighting a slender tree the coverage of a 60° beam will be wasted in the night sky; a narrower beam will “fit” the shape of the tree more closely. The diameter of the beam can be matched to the tree’s shape as indicated in the graphic and table below. If a 60° (wide flood beam) lamp in a garden uplight will not provide both height and breadth of coverage, try using two lights with overlapping narrower 38° degree beams to give the required coverage. In walkover areas use cooler LED lamps to protect against contact with a hot lens or consider a 35w metal halide uplight.
|Recommended Lamp Selection|
|Tree Shape:||A: Columnar||B: Slender||C: Medium||D: Spreading|
|Lamp beam angle:||15 degree||36 degree||36 degree||60 degree|
Suggestions are for guidance only; lighting effect will be affected by colour/darkness/density of foliage
Copyright 2014; Information based on products supplied by Lighting for Gardens Limited and is advisory only. The company accepts no responsibility for incorrect use or application of information given. Light fittings can become hot in use; exercise appropriate precautions. Exterior electrical installations should be undertaken by a qualified electrician.Graphic reproduced with permission from ”Garden lighting” by John Raine, published by Hamlyn 2001