Filament based, glass bulb, traditional lamp.
Old, fragile and high energy use technology.
Fluorescent-gas based lamps, typically with a pig-tail glass tube.
A more energy efficient choice than incandescent bulbs, and pricing and quality have improved significantly since they first appeared on store shelves.
Semiconductor based lamps, typically heavy with large heat sinks.
Replacement benefit in many applications in the home, significant energy savings available.
Measures color accuracy. The higher the number, the more colors are rendered across the light spectrum.
Measures color of the light. Cool colors are generally ≥ 4000 Kelvin, Warm colors are generally ≤ 3000 Kelvin, 3500 Kelvin is generally considered neutral.
Measures overall efficiency as a function of light output (lumens) vs. input power (wattage). The higher the number, the more efficient the product.
Designates an energy efficient, high-performance bulb. The product has been tested to applicable safety, energy efficiency, and performance regulations, including noise (so the lamp will run quietly) and FCC (so there isnŐt electromagnetic interference).
The product was tested to be in compliance with FCC regulations for radiated electromagnetic emission.
Most commonly found on Compact Florescent Bulbs, this mark signals that the product contains mercury.
Measures Light Output. The higher the number, the more light is emitted. Ex : 800 lumens > 100 lumens.
The UL Mark can be found on billions of products around the world. It signifies that they have been tested and certified and that they meet UL requirements.
Measures energy required to light the product. The lower the number, the less energy is used.
The product was tested to be in compliance with UL wet location testing, meaning it is suitable for outdoor use. The product has not been tested for use underwater or in a pool or spa environment.
Measures energy required to light the product. The lower the number, the less energy is used.Close
Measures Light Output. The higher the number, the more light is emitted. Ex : 800 lumens > 100 lumens.Close
The UL Mark can be found on billions of products to signify that they have been tested and certified and that they meet UL requirements. Products are also periodically checked by UL at the manufacturing facility to determine that they continue to meet requirements. The only way to determine if a product has been certified by UL is to find this Mark on the product itself, or in a few cases, on the packaging.
Although we refer to it as the UL Mark, there are actually a variety of UL Marks, each with its own specific meaning. We certify products according to appropriate standards for different industries and different Marks make it possible to communicate that information clearly to the most importance audiences.