What is an LED A21 bulb?
LED A21 bulbs are general service bulbs known for their A-Shape ("Arbitrary"). A21 bulbs are slightly larger than A19 bulbs.The number following the "A" stands for the diameter of the bulb in eighths of an inch.
What is Directional vs. Omni-directional light?
Directional bulbs are typically used for recessed cans or any place where a directional light source is needed. They feature a 180 degree beam angle so no light is wasted.
Omni-Directional bulbs allow for light to go in all directions with a 300 degree beam angle. Omni-Directional LED Bulbs are perfect for table lamps utilizing a lamp shade.
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 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.