McMaster-Carr logo
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    41 Products
    About Brightness and Light Appearance
    industrial info icon

    Find the right lumen level to brighten your space. Then, compare the way warm, neutral, and cool lighting affect the appearance of everyday objects.

    Bayonet-Base Miniature Light Bulbs

    Image of Product. Front orientation. Light Bulbs. Bayonet-Base Miniature Light Bulbs, Flat-Top Bulb.
    Image of Product. Front orientation. Light Bulbs. Bayonet-Base Miniature Light Bulbs, Tubular Bulb.

    Flat-Top

    Bulb

    Tubular

    Bulb

    Image of Specification. Miniature Bayonet Base. Front orientation. Contains Annotated. Miniature Bayonet Base. Bayonet-Base Miniature Light Bulbs.

    Miniature

    Bayonet

    Base

    Image of Specification. Small Bayonet Base. Front orientation. Contains Annotated. Small Bayonet Base. Bayonet-Base Miniature Light Bulbs.

    Small

    Bayonet Base

    Pins on either side of the base lock these bulbs into sockets. These bulbs are sized to fit tight spaces such as indicators and vehicle lights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
    LED—LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.
    Plastic Bulb and Plastic-Coated Glass Bulb—Plastic-coated glass and plastic bulbs are more shatter-resistant than glass.
    ET-16—When using bulbs in General Electric ET-16 sockets, match the ohms listed on the back of your socket. These bulbs do not include a resistor and are designed for use with the resistor built into the socket.
    Bulb
    Bulb Trade No.
    Voltage
    Wattage
    Light
    Technology
    Rated Life
    Overall
    Lg.
    Dia.
    Material
    Shape
    No.
    For GE Socket
    Series
    Color
    Pkg.
    Qty.
    Pkg.
    Single Contact—BA9s Miniature Base (0.36" Dia.)
     
    Flat-Top Bulb
    6MB, 44, 47, 240, 755, 1302, 1810, 1847, 18665V DC/6V DC0.14 WLED100,000 hr.1.05"0.38"PlasticT3 1/4Green16570T1000000
    6MB, 44, 47, 7555V DC/6V DC0.36 WLED100,000 hr.1.09"0.58"Plastic-Coated GlassT4 1/2Green16570T600000
    12MB, 75612V DC/14V DC0.33 WLED100,000 hr.1.05"0.38"PlasticGreen16570T200000
    24MB24V DC0.48 WLED100,000 hr.1.09"0.58"Plastic-Coated GlassT4 1/2Green16570T800000
    24MB, 1437, 1450, 181824V DC/26V DC0.49 WLED100,000 hr.1.05"0.38"PlasticT3 1/4Green16570T300000
    28MB, 313, 356, 757, 1819, 1820, 1829, 1843, 187328V DC/30V DC0.52 WLED100,000 hr.1.05"0.38"PlasticT3 1/4Green16570T500000
    120MB120V AC/130V AC0.52 WLED100,000 hr.1.05"0.38"PlasticT3 1/4Green16570T1200000
    130MB130V DC0.52 WLED100,000 hr.1.1"0.41"Plastic-Coated GlassT3 1/4Green16570T130000
    313, 757, 1819, 182928V DC0.56 WLED100,000 hr.1.09"0.58"Plastic-Coated GlassT4 1/2Green16570T1100000
     
    Tubular Bulb
    8-3995, 120MB, 120MB-6, 130MB, 949, 967120V AC/130V AC/120V DC/130V DC0.6 WLED30,000 hr.1"0.41"GlassT3 1/4Green16570T980000
    24MB, 28MB, 313, 757, 1818, 1819, 1820, 1829, 1843, 1864, 187324V AC/28V AC/24V DC/28V DC0.49 WLED30,000 hr.1"0.41"GlassT3 1/4Green16570T960000
    181512V AC/14V AC/12V DC/14V DC0.33 WLED100,000 hr.1.12"0.39"PlasticT3 1/4Green16570T9500000
    1835120V AC (1,900 ohm)
    120V DC (2,000 ohm)
    240V AC (4,800 ohm)
    250V DC (5,100 ohm)
    0.94 WLED100,000 hr.1.12"0.39"PlasticT3 1/4ET-16Green16570T92300000
    183548V DC (200 ohm)0.91 WLED100,000 hr.1.12"0.39"PlasticT3 1/4ET-16Green16570T91300000
     
    Double Contact—BA15d Small Base (0.59" Dia.)
     
    Tubular Bulb
    3S6, 6S6120V AC/120V DC0.7 WLED100,000 hr.1.7"0.63"PlasticS6Green18620K1500000
     

    Lens Caps for Miniature Light Bulbs

    Image of Product. Front orientation. Light Lenses. Lens Caps for Miniature Light Bulbs, Style A.
    Image of Product. Front orientation. Light Lenses. Lens Caps for Miniature Light Bulbs, Style B.

    Style A

    Style B

    Install miniature light bulbs into control panels, machines, and other devices using light sockets. The lens cap diffuses light and protects the bulb.
    Style A
    Image of System. Front orientation. Contains Annotated. Light Lenses. Lens Caps for Miniature Light Bulbs, Style A.
    Image of Product. Front orientation. Light Lenses. Lens Caps for Miniature Light Bulbs, Style A.
    Sockets—Pair a light socket with a lens cap to create a miniature lamp.
    Lenses
    Sockets
    Lens Caps
    For Bulb
    Shape No.
    For Max.
    Bulb Dia.
    Dia.
    Ht.
    Material
    Lens
    Color
    Each
    Each
    T1 3/41/4"0.5"0.7"PlasticGreen8275K180000008275K11000000
     
    Style B
    Image of System. Front orientation. Contains Annotated. Light Lenses. Lens Caps for Miniature Light Bulbs, Style B.
    Image of Product. Front orientation. Light Lenses. Lens Caps for Miniature Light Bulbs, Style B.
    Sockets—Pair a light socket with a lens cap to create a miniature lamp.
    Lenses
    Sockets
    Lens Caps
    For Bulb
    Shape No.
    For Max.
    Bulb Dia.
    Dia.
    Ht.
    Material
    Lens
    Color
    Each
    Each
    T3 1/40.35"0.63"0.63"PlasticGreen8275K220000008275K21000000
     

    Bottom-Flanged-Base Miniature Light Bulbs

    Image of Product. Flat-Top Bulb with Midget Flanged Base. Front orientation. Light Bulbs. Bottom-Flanged-Base Miniature Light Bulbs, Midget Base, Flat-Top Bulb.
    Image of Specification. Midget Base. Front orientation. Contains Annotated. Midget Base. Bottom-Flanged-Base Miniature Light Bulbs.

    Flat-Top

    Bulb

    with

    Midget

    Flanged

    Base

    Midget

    Base

    Use these bulbs in small instruments, such as microscopes, projectors, and inspection lights. A raised rim on the base holds the bulb at a fixed depth to keep light properly focused. Also known as midget flange-base bulbs, they’re sized to fit tight spaces.
    The trade number, printed on the bulb or in an instruction manual, makes it easy to find exact replacements.
    LED—LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.
    Bulb
    Bulb Trade No.
    Voltage
    Wattage
    Light
    Technology
    Rated Life
    Overall
    Lg.
    Dia.
    Material
    Shape
    No.
    Color
    Pkg.
    Qty.
    Pkg.
    Single Contact—Midget Base (0.28" Dia.)
     
    Flat-Top Bulb
    327, 370, 376, 387, 45926V AC/24V DC0.5 WLED100,000 hr.0.61"0.2"PlasticT1 3/4Green17890K200000
    327, 376, 385, 38728V DC/30V DC0.52 WLED100,000 hr.0.61"0.2"PlasticT1 3/4Green17890K30000
     

    Bayonet-Base Status-Indicating Light Bulbs

    Image of Product. Front orientation. Light Bulbs. Bayonet-Base Status-Indicating Light Bulbs.
    Use these as replacement bulbs in stack lights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
    Bulb
    Wattage,
    W
    Bulb Trade
    No.
    Light
    Technology
    Material
    Dia.
    Shape
    No.
    Rated Life,
    hr.
    Est. Yearly
    Energy Cost
    Overall
    Lg.
    Color
    Each
    Double Contact—Small Bayonet Base (0.59" Dia.)
     
    24V DC
    0.6763S6, 6S6LEDPlastic5/8"T4 1/250,000$0.081 13/16"Green6575T71000000
     

    Slide-Base Miniature Light Bulbs

    Image of Product. LED. Front orientation. Light Bulbs. Slide-Base Miniature Light Bulbs, Flat-Top Bulb, LED.

    LED

    Often used in signs, control panels, and elevators. Also known as telephone-base miniature light bulbs, these bulbs have a flat slide-in base to fit into older telephone switchboards, instruments, and indicators.
    LED—LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.
    ET-5 and ET-6—When using bulbs in General Electric ET-5 or ET-6 sockets, match the ohms listed on the back of your socket. These bulbs do not include a resistor and are designed for use with the resistor built into the socket.
    Bulb
    Bulb Trade
    No.
    Voltage
    Wattage
    Light
    Technology
    Rated Life
    Overall
    Lg.
    Dia.
    Material
    Shape
    No.
    For GE Socket
    Series
    Color
    Pkg.
    Qty.
    Pkg.
    Slide Base No. 3
     
    Flat-Top Bulb
    24E, 24X48V DC (900 ohm), 130V AC/130V DC (3,200 ohm)0.74 WLED100,000 hr.1.6"0.2"PlasticT2ET-5, ET-6Green18034K56000000
     

    Screw-In-Base Miniature Light Bulbs

    Image of Product. Front orientation. Light Bulbs. Screw-In-Base Miniature Light Bulbs, Tubular Bulb.

    Tubular

    Bulb

    These bulbs are sized to fit tight spaces such as signs, control panels, indicators, and flashlights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
    LED—LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.
    Bulb
    Bulb Trade
    No.
    Voltage
    Wattage
    Brightness
    Light
    Technology
    Rated Life
    Color
    Overall
    Lg.
    Dia.
    Material
    Shape
    No.
    Pkg.
    Qty.
    Pkg.
    E11 Miniature Candelabra Base (7/16" Dia.)
     
    Tubular Bulb
    3S6, 6S6120V AC/130V AC/120V DC/130V DC1.6 W31 lmLED100,000 hr.Green1.66"0.59"PlasticS618607K11000000
     
    E12 Candelabra Base (1/2" Dia.)
     
    Tubular Bulb
    4C7, 6S6120V AC1.2 W2 lmLED100,000 hr.Green2.13"0.83"PlasticT618607K3200000
     

    Circuit Board LED Light Bulbs

    Often used as status indicators, in displays, or to check circuit function in prototyping and testing, these bulbs have wire terminals to directly install onto circuit boards. As LEDs, they last longer, are more efficient, and produce less heat than other types of bulbs. Vibration won’t cause these bulbs to malfunction. Brightness is measured in lumens; the higher the lumens, the brighter the bulb. They require a resistor (sold separately) to limit current.
    Light Bulbs
    Image of Product. Front orientation. Light Bulbs. Circuit Board LED Light Bulbs, Light Bulbs.
    Bulb
    Wire
    Color
    Voltage
    Wattage
    Brightness
    Overall
    Lg.
    Dia.,
    mm
    Lg.
    Material
    Shape
    No.
    Dia.
    Terminal
    Lg.
    Pkg.
    Qty.
    Pkg.
     
    Tubular Bulb
    Green9V DC (290 ohm)
    24V DC (1,040 ohm)
    0.08 W4 lm1 1/16"50.34"PlasticT1 3/40.02"3/4"257171N1400000
     
    Variable Resistors
    Light Bulb Sets
    Image of Product. Front orientation. Light Bulbs. Circuit Board LED Light Bulbs, Light Bulb Sets.
    Bulb
    Wire
    No. of
    Pieces
    Includes
    Voltage
    Wattage
    Overall
    Lg.
    Dia.,
    mm
    Lg.
    Material
    Shape
    No.
    Dia.
    Terminal
    Lg.
    Each
     
    Tubular Bulb
    125Blue LED Light Bulb—2 lumens (25 Pieces)
    Green LED Light Bulb—4 lumens (25 Pieces)
    Red LED Light Bulb—1 lumens (25 Pieces)
    White LED Light Bulb—3 lumens (25 Pieces)
    Yellow LED Light Bulb—1 lumens (25 Pieces)
    9V DC (290 ohm to 340 ohm)
    24V DC (1,040 ohm to 1,090 ohm)
    0.08 W to 0.085 W1 1/16"50.34"PlasticT1 3/40.02"3/4"7171N11000000
     
    Variable Resistors

    Wedge-Base Miniature Light Bulbs

    Image of Product. Front orientation. Light Bulbs. Wedge-Base Miniature Light Bulbs, Flat-Top Bulb.
    Image of Product. Front orientation. Light Bulbs. Wedge-Base Miniature Light Bulbs, Tubular Bulb.

    Flat-Top

    Bulb

    Tubular

    Bulb

    Image of Specification. Subminiature Wedge Base. Front orientation. Contains Annotated. Subminiature Wedge Base. Wedge-Base Miniature Light Bulbs.

    Subminiature

    Wedge Base

    Image of Specification. Medium Wedge Base. Front orientation. Contains Annotated. Medium Wedge Base. Wedge-Base Miniature Light Bulbs.

    Medium

    Wedge

    Base

    These bulbs are sized to fit tight spaces such as indicators and vehicle lights. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
    LED—LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration.
    Plastic-Coated Glass Bulb—Plastic-coated glass and plastic bulbs are more shatter-resistant than glass bulbs.
    Bulb
    Bulb Trade No.
    Voltage, V DC
    Wattage
    Brightness
    Light
    Technology
    Rated Life
    Color
    Overall
    Lg.
    Dia.
    Material
    Shape
    No.
    Pkg.
    Qty.
    Pkg.
    Subminiature Base (0.2" Wd.)
     
    Flat-Top Bulb
    18, 37, 73, 7414/120.21 W1 lmLED100,000 hr.Green0.8"0.23"Plastic-Coated GlassT1 3/416932K1100000
     
    Medium Base (0.37" Wd.)
     
    Flat-Top Bulb
    124, 658, 936, 208014/120.28 W5 lmLED100,000 hr.Green0.9"0.41"Plastic-Coated GlassT3 1/417997K110000
    400, 464, 655, 656, 65724/280.56 W5 lmLED100,000 hr.Green0.9"0.41"Plastic-Coated GlassT3 1/417997K1200000
     
    Tubular Bulb
    194G143.8 W25 lmIncandescentNot RatedGreen1.06"0.41"GlassT3 1/4109527T4080000
     

    Wire-Terminal-Base Miniature Light Bulbs

    Connect these bulbs to a power source through a panel using the wire terminals. They fit into tight spaces in equipment and electronic assemblies. Brightness is measured in lumens; the higher the lumens, the brighter the bulb.
    LED
    Image of Product. Front orientation. Light Bulbs. Wire-Terminal-Base Miniature Light Bulbs, LED.
    LED bulbs last longer and are more efficient than other technologies. They generate little heat and withstand vibration. They require a resistor to limit current (not included).
    Bulb
    Voltage
    Wattage
    Brightness
    Material
    Dia.,
    mm
    Lg.
    Shape
    No.
    Color
    Beam
    Angle
    Rated
    Life
    Wire Terminal
    Lg.
    Overall
    Lg.
    Pkg.
    Qty.
    Pkg.
    9V DC (275 ohm)
    24V DC (1,025 ohm)
    0.12 W1 lmPlastic50.34"T1 3/4Green30°
    1,000 hr.1 1/8"1.465"101823N11100000
    9V DC (290 ohm)
    24V DC (1,040 ohm)
    0.12 W2 lmPlastic50.34"T1 3/4Green15°
    1,000 hr.1 1/8"1.465"101823N30000
    Variable Resistors

    Screw-In-Base Light Bulbs

    Image of Product. Side1 orientation. Light Bulbs. Screw-In-Base Light Bulbs, Standard Bulb.
    Image of Product. Side1 orientation. Light Bulbs. Screw-In-Base Light Bulbs, Flat-Top Bulb.

    Standard

    Bulb

    Flat-Top

    Bulb

    Your go-to bulbs for everyday use in standard sockets.
    Use the light appearance to match older bulbs in your facility.
    Plastic Bulb—Plastic bulbs are shatterproof.
    Bulb
    Light
    Equivalent Incandescent
    Bulb Wattage
    Shape
    No.
    Material
    Dia.
    Color
    Appearance
    Intensity
    Setting
    Tech.
    Brightness
    Wattage
    Rated Life
    Overall
    Lg.
    Pkg.
    Qty.
    Pkg.
    Standard Bulb—Medium (Standard Household) Base (1 1/16" Dia.)
     
    120V AC
    25 WA19Glass2 3/8"GreenNot RatedDimmableIncandescent155 lm25 W5,000 hr.4"11473K2300000
    60 WA19Glass2 3/8"GreenNot RatedDimmableLEDNot Rated4.5 W20,000 hr.4 1/4"11473K4130000
    60 WA19Glass2 3/8"GreenNot RatedDimmableLEDNot Rated4.5 W20,000 hr.4 1/4"121473K41400000
     
    Flat-Top Bulb—Medium (Standard Household) Base (1 1/16" Dia.)
     
    120V AC
    20 WPlastic1 3/4"GreenNot DimmableLED90 lm2.8 W100,000 hr.3 1/2"16585T12000000
     

    Screw-In-Base Exit Sign Light Bulbs

    Image of Product. Front orientation. Contains MultipleImages. Light Bulbs. Screw-In-Base Exit Sign Light Bulbs.
    Image of Specification. Candelabra Base. Front orientation. Contains Annotated. Candelabra Base. Screw-In-Base Exit Sign Light Bulbs.

    Candelabra

    Base

    Replace incandescent bulbs in exit signs with longer-lasting, energy-efficient LEDs. These bulbs are compatible with exit signs that are viewable from one or both sides. A bulb’s estimated yearly cost is based on 3 hours of usage per day at $0.11 per kWh.
    Bulb
    Color
    Equiv. Incandescent
    Bulb Wattage, W
    Brightness
    Light
    Technology
    Material
    Dia.
    Shape
    No.
    Wattage,
    W
    Rated Life,
    hr.
    Est. Yearly
    Energy Cost
    Overall
    Lg.
    Includes
    Each
    Tubular Bulb—Candelabra Base (1/2" Dia.)
     
    120V AC
    Green15Not RatedLEDPlastic0.51"T62.2100,000$0.274.65"Two Diffuser Panels
    Two Light Bulbs
    1557K26000000
     

    Screw-In-Base Floodlight and Spotlight Bulbs

    Light up large areas or spotlight an object. These bulbs suit recessed cans and outdoor floodlights. Light is brightest at beam center and roughly half as bright at the edges. All are shatterproof plastic.
    Use the light appearance to match older bulbs in your facility.
    PAR38 Bulb Shape—Medium (Standard Household) Base (1 1/16" Dia.)
    Image of Product. Front orientation. Light Bulbs. Screw-In-Base Floodlight and Spotlight Bulbs, PAR38 Bulb Shape.
    PAR bulbs throw tighter, farther-reaching spotlight beams, like those in outdoor security systems.
    Light
    Pkg. of 1
    Pkg. of 6
    Equiv. Incandescent
    Bulb Wattage, W
    Beam
    Angle
    Color
    Intensity
    Setting
    Appearance
    Color Rendering
    Index
    Brightness,
    lm
    Wattage,
    W
    Rated Life,
    hr.
    Bulb
    Dia.
    Overall
    Lg.
    Pkg.
    Pkg.
    120V AC
     
    Plastic LED Bulb
    9090°
    GreenNot DimmableNot Rated8065095,5004 3/4"5 1/8"4074N74000004074N75000000
     
    back to top