LED PAR Bulb
What is a beam angle?
The beam angle of an LED bulb is the angular dimension of the cone of light from the lamp. It encompasses the central part of the beam out to the angle where the intensity is 50 percent of maximum.
For most household ceiling fitted applications, a beam angle of 30 or 40 degrees would be sufficient. For outdoor applications, a wider beam angle of 60 to 120 degrees is preferred to cover a larger surface area.
What color temperature do I need?
Color temperatures range from warm white to cool white.
- 2700K - 3000K – provides an ambient, intimate, and personal mood with its warm white light that is ideal for living rooms, family rooms, and hospitality environments.
- 3500K - 4100K – provides a clean and efficient neutral white light that is ideal for kitchen, bath, garage or commercial applications.
- 5000K - 6500K - provides a vibrant and alert cool white light that is ideal for commercial, industrial, and institutional applications.
What does the number following PAR mean?
The numerical value represents the diameter of the bulb in 1/8 of an inch. Typical sizes include PAR16, PAR20, PAR30, PAR30 long neck, and PAR38.
Common measurements:
- 20 is 2.5 inches
- 30 is 3.75
- 38 is 4.75 inches
What is the difference between a PAR and BR bulb?
PAR floodlights have a flat lens and are available in an assortment of beam angles.
- Narrow Spot: 5-15 degrees
- Spot: 16-22 degrees
- Narrow flood: 23-32 degrees
- Flood: 33-45 degrees
- Wide Flood Beam: over 45 degrees
BR (Bulged Reflector) floodlights have a curved lens that have a wide flood beam angle, over 45 degrees.