There are more differences between LED bulbs and halogen bulbs than just their energy efficiency
, though. Light from LEDs is generally very directional, whereas halogen bulbs produce a more diffuse light. This means that LED bulbs are good to use as spotlights, but may not be ideal for lighting home interiors. LEDs produce light in a narrow bandwidth, meaning that they normally produce a single colour, unlike halogen bulbs which produce white light. There are several methods that allow LED bulbs to produce white light, but this unique property of LEDs means that it's easy and cheap to produce coloured LED bulbs. Differences such as these can cause some concerns, but they give GU10 LED bulbs some significant advantages over halogen bulbs, especially when specialist lighting is required.