Full Width Half Maxium. A measurement between two data points on either side of the peak, where the light intensity is 50-percent of the maximum value.
When talking about lens optics the larger the optic the easier it is to collimate light into a tighter pattern. Another consideration when trying to achieve a tight spot is the size of the LED die. The smaller the size of the die the tighter the spot.
When we think of an LED optic, we tend to think of a clear plastic lens that is placed on top of the LED itself to focus or spread the light. If this is your thought process, you’ve gone too far.
Lets take a step back and look at the LED itself. See that small protective dome over the diode? That is actually called the primary optic which serves to protect and shape the output of the small diode.
The light from the LEDs primary optic is still too broad for most applications, lacking intensity over distance. This is why most LED fixtures use secondary optics (lenses, reflectors, TIR optics, etc.) to collect all that light and magnify its intensity towards the target.

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1. Your inquiry will be replied by professional sales in 8 hours.

2. OEM & ODM are welcomed, OEM brand is available.

3. Distributorship is offered for your unique design and some our current models.

4. Protection of your sales area, ideas of design and all your private information.

5. 2 years' warranty.

6. Provide you the lowest freight cost and the best service.

7. Professional engineers to design and develop new led street light components according to your requirements.

8. When you have larger quantity, we can design the color boxes for you, and use your logo and label on the products if u need.

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led projector lenses

led film lighting kits

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