General Lamp Information



ASL is at the forefront of energy efficient lighting technology, manufacturing the largest selection of fixtures that save energy. Various light sources are utilized that are considered common sense substitutes to inefficient incandescent lighting.

This information will help you evaluate the large range of energy saving lamps that are packaged with ASL fixtures, in terms of wattage consumption, lumen output, life cycle, Kelvin temperature, Color Rendering Index (CRI), and potential savings. The energy saved is determined by comparing the difference in watts consumed when utilizing an energy efficient light source as opposed to the watts consumed with an inefficient light source – with comparable lumen output level. Additionally, extended lamp life is an important consideration when calculating savings. It reduces lamp purchases and expensive labor costs resulting from frequent lamp burnout.

WATTAGE listed does not take into account any consumption drawn by the ballast. LUMENS shown considers initial lumens only and no allowance has been made for light loss attributable to fixture lens. LAMP LIFE ratings for fluorescent lamps are based on three hour burn cycles. Understandably, lamp life is extended when lamps burn continuously. All data is based on normal operating conditions at rated voltage, with ballast meeting ANSI specifications.

At ASL we are confident that this information will help you conserve energy the intelligent way while helping to MAKE AMERICA ENERGY INDEPENDENT!



The Kelvin (color temperature) column indicates how white the light source is. The lower the number is the warmer the light. Most incandescent lamps have a color temperature of between 2700K and 3000K. Cooler color temperatures in general fluorescent lighting range from 4100K and higher. The mid-range color temperature is 3500K which provides a neutral color rendition.




The Color Rendering Index column indicates how natural the overall appearance of the lighted subject or space will appear under the light source selected. The higher the CRI, the better the color rendering properties of the light source.