How to determine beam angle ?

The beam angle of a light bulb is often visibl on the package.In most cases, it is visible as a numerical value (in this instance ,200) located witin something that looks similar to a triangle, but is an angle symbol topped by a line with two arrows on either end that indicates beam spread. 

There are aa few thing you should keep in mind when you 're selecting a beam angle:

1. The room you're illuminating 

2. The number and distribution of light fixtures 

3. Ceiling or fixture height

4. The light bulb itself 

5. Your desired ambience 

For more detail please contact :joe@tonghuilighting.cn ,vicky@tonghuilighting.cn

Telephone No. : 0086-15753273917, 0086-15318718647