It is understood that most of the projectors use halogen bulbs as their light source in the market, however, the halogen is relatively large, they are generally more than 10cm in diameter at least, the useful life of the halogen is around 2000-4000 hours, its radiation is larger than led bulb lamp projector, which is not suitable for watching for a long time, especially to the children and pregnant women, and it will release toxic substances (such as mercury). Now the led bulb lamp projector becomes smaller size, a large number of halogen bulbs are slowly being replaced by tiny LED bulbs. These small bulbs will quickly become the first choice for the micro-projector manufacturers as light source, not only are LED light bulbs very small, its diameter is only a few centimeters, but the power consumption is very small, very energy saving, the useful life of LED is so long that can reach more than 30,000 to 100,000 hours, and it has no radiation, 100% non-toxic (eg mercury), it is Micro-projector light source the best choice. And the led bulb lamp projector will replace the traditional halogen projector little by little.
Lumens are the measurement of light produced by the bulb in the projector. The higher the lumen, the brighter the image will be. Where and how you'll use the led bulb lamp projector will most likely determine how many lumens you need. If you can turn off all the lights and image quality is not that great of a concern, you can save yourself some money by buying a lower lumen projector. The less control you have over ambient lighting or the larger and clearer an image you'll need, the higher the lumens you must go.
