More questions about lamps (bulbs):
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Q. How do I know which beam angle to order?
A. The principal beam angles for low voltage reflector lamps are 10, 12, 24, 38 and 60 degrees. Sometimes you will want a small pool of light from a narrow beam to accent a feature without lighting the surroundings; other subjects will require the widest coverage available, such as a 60 degree beam.
A 60 degree beam will provide wide coverage from a pergola beam only 1.5 metres above a table below, but if you are uplighting a slender tree the coverage of a 600 beam will be wasted in the night sky; a narrower beam ,10 degree, will "fit" the shape of the tree more closely. If in doubt, be prepared to experiment a bit by changing the lamp to compare the different garden lighting effects.
The chart below is a guide to help you understand the effect of each lamp and it's angle of beam.
