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Bulb Shapes and Base Types Reference Guides
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LED Bulb Reference Chart CFL Bulb Reference Chart Incandescent Bulb Reference Chart Halogen Bulb Reference Chart Linear Fluorescent Bulb Reference Chart HID Bulb Reference Chart Bulb Size Reference Guide Bulb Color (Kelvins) Reference Guide Sacto Products Bulb Guide Satco LED Bulb Guide Sylvania Products Bulb Guide Sylvania Phase-Out Incandescent Replacement Guide TCP LED Bulb Guide TCP CFL Bulb Guide Best Lighting Emergency Lighting Catalog Progress Lighting Residential Fixtures 2013 Catalog LED Label Break Down

*The Reference Guides are interactive click on the bulb or base to visit the product category*

Shop for LED Light Bulbs Buy A 19 Standard LED Bulbs Buy LED BR Reflector Bulbs Buy for Candle Base LED Bulbs Buy Globe Shape LED Bulbs Buy LED PAR Reflector Bulbs Buy LED R Reflector Bulbs Buy LED MR16 Bulbs Buy LED MR11 Bulbs Buy LED MR GU10 Base Bulbs Buy LED PAR 16 Reflector Bulbs Buy LED PAR 20 Reflector Bulbs Buy LED PAR 30 Reflector Bulbs Buy LED PAR 38 Reflector Bulbs Buy LED BR 20 Reflector Bulbs Buy LED BR 30 Reflector Bulbs Buy LED BR 40 Reflector Bulbs Buy LED S11 Bulbs Buy LED T8 Double Pin Bulb Buy Medium E26/27 Base LED Bulbs Buy Double Contact Bayonet Base LED Bulbs Buy Single Contact Miniature Bayonet Base LED Bulbs Buy Candelabra E12 Base LED Bulbs Buy GU10 Base LED Bulbs Buy GU24 Base LED Bulbs Buy GU5.3 Base LED Bulbs

Understanding the LED Lighting Facts Label - Video & Infographic



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Shop for Compact Fluorescent Light Bulbs - CFL Shop for Single Tube 2-Pin CFL Shop for Single Tube 4-Pin CFL Shop for Double Tube 2-Pin CFL Shop for Triple Tube 4-Pin CFL Shop for Flat Quad 4-Pin CFL Shop for Double Tube 15mm CFL Shop for PLL 4-Pin Long Tube CFL Shop for BR38 CFL Bulb Shop for R20 CFL Bulb Shop for R30 CFL Bulb Shop for R40 CFL Bulb Shop for R40 Plug-In CFL Bulb Shop for A-Shape CFL Bulb Shop for Globe CFL Bulb Shop for PAR20 Heavy Duty CFL Bulb Shop for PAR30 Heavy Duty CFL Bulb Shop for PAR20 Heavy Duty CFL Bulb Shop for B13 CFL Bulb Shop for GU24 CFL Bulb Shop for Screw-In Spiral CFL Bulb Shop for Spiral Plug-In CFL Bulb Shop for T20 CFL Bulb Shop for G23 CFL Base Bulbs Shop for GX23 CFL Base Bulbs Shop for GX23-2 CFL Base Bulbs Shop for G24q-1 CFL Base Bulbs Shop for G24q-2 CFL Base Bulbs Shop for G24q-3 CFL Base Bulbs Shop for G24d-2 CFL Base Bulbs Shop for GX24q-3 CFL Base Bulbs Shop for GX24q-4 CFL Base Bulbs Shop for GX24q-5 CFL Base Bulbs Shop for 2G11 CFL Base Bulbs Shop for 2GX7 CFL Base Bulbs Shop for Medium E26/27 CFL Base Bulbs Shop for Candelabra Screw E12 CFL Base Bulbs
Shop for Incandescent Light Bulbs Shop for A-Shape Incandescent Bulbs Shop for Incandescent BR Reflectors Bulbs Shop for Cylindrical Incandescent Bulbs Shop for Candelabra Base Incandescent Bulbs Shop for Straight Tip Incandescent Candle Base Bulbs Shop for Bend Tip Edison Base Incandescent Bulbs Shop for Straight Tip Edison Base Chandelier Bulbs Shop for Flame Incandescent Chandelier Bulbs Shop for CA5 Candelabra Base Bulbs Shop for Elliptical Reflector Bulbs Shop for Incandescent Candelabra Base Globes Shop for Incandescent Medium Base Globes Shop for Mid-Break Incandescent Reflector Bulbs Shop for PAR36 Incandescent Reflector Bulbs Shop for PAR Incandescent Reflector Bulbs Shop for Pear Straight Neck Incandescent Bulbs Shop for R Incandescent Reflector Bulbs Shop for Straight Side Incandescent Bulbs Shop for Tubular Incandescent Bulbs Shop for Incandescent Screw Terminal Base Bulbs Shop for Incandescent Slip-On Terminal Base Bulbs Shop for Incandescent Bayonet Base Bulbs Shop for Incandescent Candelabra E12 Base Bulbs Shop for Incandescent European E14 Base Bulbs Shop for Incandescent Intermediate E17 Base Bulbs Shop for Incandescent Medium E26/27 Base Bulbs Shop for Incandescent Medium Side Prong Base Bulbs Shop for Incandescent Medium Skirted E26 Base Bulbs Shop for Incandescent Modul E39 Base Bulbs Shop for Incandescent Mogul End Prong Base Bulbs
Buy Halogen Light Bulbs Buy Halogen AR111 Screw Terminal Buy Halogen BR Reflector Bulbs Buy Halogen BT15 Bulbs Buy Halogen J Type Double Ended Bulbs Buy Halogen JC Mini Bulbs Buy Halogen JD Mini Bulbs Buy Halogen JD T10 Mini Bulbs Buy Halogen JDR Bulbs Buy Halogen JDR/S Bulbs Buy Halogen MR16 Bulbs Buy Halogen MR-DC Bulbs Buy Halogen MR16 GU10 Bulbs Buy Halogen PAR16 Bulbs Buy Halogen PAR20 Bulbs Buy Halogen PAR30 Bulbs Buy Halogen PAR36 Bulbs Buy Halogen PAR38 Bulbs Buy Halogen PAR46 Bulbs Buy Halogen Screw Terminal Base Bulbs Buy Halogen DC Bayonet Base Bulbs Buy Halogen G53 Base Bulbs Buy Halogen GY6.35 Base Bulbs Buy Halogen G8 Base Bulbs Buy Halogen G9 Base Bulbs Buy Halogen G4 Base Bulbs Buy Halogen GU5.3 Base Bulbs Buy Halogen SC Bayonet Base Bulbs Buy Halogen GU10 Base Bulbs Buy Halogen E17 Intermediate Base Bulbs Buy Halogen E26 Medium Base Bulbs Buy Halogen E11 Mini Candelabra Base Bulbs Buy Halogen GX16d Mogul End Prong Base Bulbs Buy Halogen BA15s SC Bayonet Base Bulbs Buy Halogen R7S Recessed Single Contact Base Bulbs
Shop for Linear Fluorescent Tubes Shop for Circline Tubes Shop for T5 Linear Fluorescent Tubes Shop for T6 Linear Fluorescent Tubes Shop for T8 Linear Fluorescent Tubes Shop for T10 Linear Fluorescent Tubes Shop for T12 Linear Fluorescent Tubes Shop for U-Bend Fluorescent Tubes Shop for Linear Fluorescent Miniature Bi-Pin Base  Shop for Linear Fluorescent Bi-Pin Base  Shop for Linear Fluorescent Recessed DC Base  Shop for Linear Fluorescent Single Pin Base
Buy HID Light Bulbs Buy A23 HID Bulbs Buy BT37 HID Bulbs Buy BT56 HID Bulbs Buy ED17 HID Bulbs Buy ED18 HID Bulbs Buy ED23.5 HID Bulbs Buy ED25 HID Bulbs Buy ED37 HID Bulbs Buy PAR20 HID Bulbs Buy PAR38 HID Bulbs Buy R40 HID Bulbs Buy T6, T7 and T8 Double HID Bulbs Buy Single T6 and T7 HID Bulbs Buy T15 HID Bulbs Buy BY22d SC Bayonet Base HID Bulbs Buy FC2 HID Base Bulbs Buy G12 Bi-Pin HID Base Bulbs Buy R7S Single Contact HID Base Bulbs Buy Position Oriented Mogul Base HID Bulbs Buy EX39 Mogul Base HID Bulbs Buy E39 HID Base Bulbs Buy E26 Medium Base HID Bulbs

Lamp Size Reference

How to use the chart: The code number of a bulb consists of a letter or letters followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. The most commonly used household bulb is the A-19. The bulb is "A" type and the diameter would be 2 3/8" A 120BR40 is a 120 watt reflector 5" in diameter.

















Color Temperature Guide

Kelvin degree lamps used in task lighting are as follows:


Kelvin Associated Effects & Moods Appropriate Applications
2700 Friendly, personal, intimate Homes, libraries, restaurants
3000 Soft, warm pleasing light Homes, hotel rooms and lobbies, restaurants, retail stores
3500 Friendly, inviting, non-threatening Executive offices, public reception areas, supermarkets
4100 Neat, clean, efficient Office, classrooms, mass merchandisers, showrooms
5000 Bright, alert Graphic industry, hospitals
6500 Bright, cool Jewelry stores, beauty salons, galleries, museums, printing





Color Rendering Index

There are two standard measurements for the color characteristics of light: "color rendering index" (CRI), a term used to describe the extent to which an artificial light source is able to render the true color of objects as seen by natural outdoor sunlight which has a CRI of 100, and "color temperature", which expresses the color appearance of the light itself.

Color Rendering Index: Incandescent is used as the base reference of 100 CRI. Compact fluorescent lamps are graded at 82-86 CRI, which is considered high quality color rendering. CRI is a more important consideration for retail lighting design than it is for office lighting.

Any CRI rating of 80 or above is considered high and indicates that the source has good color properties. Incandescent lamps and daylight have a CRI of 100, the highest possible CRI. The higher the CRI of the light source, the "truer" it renders color.

Color Temperature: Refers to the way color groups are perceived the psychological impact of lighting. Color temperature is how cool or warm the light source appears.

The color temperature of a light source is a numerical measurement of its color appearance. This temperature is based on the principle that any object will emit light if it is heated to a high enough temperature and that the color of that light will shift in a predictable manner as the temperature is increased. This system is based on the color changes of a black metal as it is heated from a cold black to a white hot state. As the temperature increases, the color would shift gradually from red to orange to yellow to white and finally to a blue white. Color temperature is measured in degrees Kelvin (K). Colors and light sources from the red/orange/yellow side of the spectrum are described as warm (incandescents) and those toward the blue end are referred to as cool (natural daylight).

The sun, for example, rises at approximately 1800 Kelvin and changes from red to orange to yellow and to white as it rises to over 5000 Kelvin at high noon. It then goes back down the scale as it sets.


Satco Light Bulb Catalog
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SATCO 2013 Catalog




SATCO 2013 LED Catalog




Sylvania Light Bulb Catalog

Sylvania LED 2013 Catalog



Sylvania 2012 Catalog




Light Bulbs Replacement Guide (Incandescent to CFL or LED)


Sylvania Phase-Out Light Bulbs Replacement Guide (Incandescent to CFL or LED)

Sylvania Phase-Out Light Bulbs Replacement Guide (Incandescent to CFL or LED)

TCP LED Elite Series Catalog


TCP A-Shape LED Bulbs Spec Sheet



TCP MR16 LED Bulbs Spec Sheet



TCP BR & PAR LED Reflectors Bulbs Spec Sheet




TCP CFL TruStart Light Bulbs Spec Sheet



TCP CFL TruDim Light Bulbs Spec Sheet



TCP CFL InstaBright & Armor Coat Light Bulbs Spec Sheet



TCP CFL A-Shape Light Bulbs Spec Sheet



TCP LED Comparison Chart - TCP, Sylvania, GE & Philip LED's Side by Side



Best Lighting Emergency Exit Lighting 2013 Catalog



Progress Lighting Residential Fixtures 2013 Catalog


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Light Bulb Reference Guide, Light Bulb Replacement Guide, Kelvin Temperature Reference Guide, Light Bulb Shape Reference Chart, Light Bulb Base Reference Chart, Sylvania 2013 Catalog, TCP 2013 Catalog, Satco 2013 Catalog, Best Lighting 2013 Catalog, Progress Lighting 2013 Catalog.

BULB REFERENCE GUIDE