The beam light bulbs are mainly based on Philips. The general situation here is four categories. One is the original bubble, Philips Platinum 5R bubble MSD or the original Osram original 230W. One is Philips UHP bulb, the other is Taiwan's excellent lamp 5R. It is the most used in the market, and the last category is a variety of fake bubbles and bubbles that are filtered by Philips and have uneven color temperature and uneven brightness.
The original 5R white gold bubble is about 700 more expensive than UHP. In addition, the same UHP bulbs, the bubble pressure is also different, a good manufacturer will measure the bubble pressure, once again filter the bulb to ensure the stability and consistency of the bulb.