What are dichroic light bulbs and how can I tell them apart from an ordinary lamp?
A halogen dichroic light bulb has a reflector that emits the light from the back of the lamp. Used in the wrong downlighter they could cause overheating. You can tell them apart from a ordinary lamp by shining a light at the back of one, if it's dichroic it will pass through and show a pink hue.
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