A line bulb shape

A line bulb shape DEFAULT

A-series light bulb

The A-series light bulb is the "classic" glass light bulb shape that has been the most commonly used type for general lighting service (GLS) applications since the early 20th century. It has a pear-like shape and is typically fitted to either an Edison screw or a bayonet cap base. The number that follows the "A" designation indicates the nominal major diameter of the bulb, either in one-eighth inch units in the United States[1][2][3] or in millimeters in the rest of the world.[4][5][6]

Physical outline[edit]

The most commonly used A-series light bulb type is an A60 bulb [7] (or its USC equivalent, the A19 bulb[2][4]), which is 60 mm (19/8 in or 2 3/8 in) wide at its widest point[3] and approximately 110 mm (4 3/8 in) in length.[8] Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80. Another common A-series light bulb type is the A15 bulb which is commonly used in the US for appliances and ceiling fans. The A15 bulb is 15⁄8 in (1+7⁄8 in; 48 mm) wide at its widest point and 3.39 inches tall.

Socket type[edit]

Most A19/A60 light bulbs come with an E26 type (i.e. 26 millimeters in diameter) in countries with a mains voltage of 100–120 volts, or an E27 type (i.e. 27 millimeters in diameter) in countries with 220–240 volts AC. A-series light bulbs using the older B22 bayonet twist type base are less common; they can be found in the UK and many British Commonwealth countries.

Specifications[edit]

Philips L Prizebulbs count as A19 under Energy Star requirements.

IEC/TR 60887:2010[4] defines the A bulb shape as: "A bulb shape having a spherical end section that is joined to the neck by a radius that (a) has a centre outside the bulb, (b) has a magnitude greater than the radius of the spherical section, (c) and is tangent to both the neck and the curve of the spherical end section.". The same standard also defines in addition to the A shape also bulged (B), conical (C), elliptical (E), flame (F), Globular (G), (K), mushroom (M), (P), reflector (R), straight-sided (S) and tubular (T) bulb shapes, as well as several modifier letters and special shapes. Very similar to the A shape are the P shape ("A bulb having a spherical end section, and a conical mid section, the sides of which are tangent to the curve of the spherical section"), and its PS variant ("Tubular neck section below the bulb and above the approximate reference line").

ANSI C79.1-2002, IS 14897:2000,[5] and JIS C 7710:1988[9] define the "A shape" as "a bulb shape having a spherical end section that is joined to the neck by a radius", where the radius is greater than that of the sphere, corresponds to an osculating circle outside the light bulb, and is tangent to both the neck and the sphere. The Energy Star certification only requires omnidirectional light bulbs to fit the overall dimensions of the corresponding ANSI bulb type.[10]: 14.1 

Lamp types[edit]

An A60 (A19) LED light bulb with E27 screws

Although most A-shape bulbs have historically used incandescent lighting technology, some other technologies – such as compact fluorescent (CFL) or LED lamps – have been used in A-shape bulbs more recently.

References[edit]

  1. ^"Lamp Size and Comparison Features"(PDF). WW Grainger Inc.
  2. ^ ab"LED University: Light Bulb Shapes and Sizes Explained". EagleLight.
  3. ^ ab"Light Bulb Reference Guide". Superior Lighting.
  4. ^ abcGlass bulb designation system for lamps. Technical report IEC/TR 60887:2010, Edition 3.0, International Electrotechnical Commission, 2010-06.
  5. ^ ab"IS 14897 (2000): Glass Bulb Designation System for Lamps - Guide". Retrieved 21 March 2017.
  6. ^"LED Start GLS: 40, 60, 75 & 90w equivalents"(PDF). GE Lightling.
  7. ^A19 Bulb Vs E26 Bulb: What’s the Difference? "A19 Bulb Vs E26", KRM Light+
  8. ^"Light fixtures and light bulb sizes". www.tuxgraphics.org. Retrieved 28 February 2017.
  9. ^"JIS C 7710:1988 電球類ガラス管球の形式の表し方" (in Japanese). Retrieved 2017-03-21.
  10. ^"ENERGY STAR Eligibility Criteria Version 2.0, Rev. Oct-2016"(PDF). Retrieved 2017-03-21.
Sours: https://en.wikipedia.org/wiki/A-series_light_bulb

A-line LED Bulbs

PictureProduct Information

HYA60-10W

10W A60 LED Bulb

Power consumption: 10W; Voltage: AC 220V, 50Hz; Light source: 2835 LED chips, 0.5W, 6V/75mA, 18 pcs; Luminous flux: 950-1000 lm; Aluminum + Thermoplastics; Non-isolated, 4000V hipot tested driver; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

HYA60P10W

10W A60 LED Bulb

Power consumption: 10W; Voltage: AC 220V, 50Hz; Light source: 5630 LED chips, 20 pcs; Luminous flux: 810-900 lm; Aluminum + Nano-Thermoplastics; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

XHN A60-10W

10W A60 LED Bulb

Power: 10W; Input voltage: AC 100-240V; Light source: Epistar 2835 LED; Luminous flux: 780-810lm; Beam angle: 200°; Color temperature:Warm/Natural/Cool White; Power factor: 0.5 min.; CRI: 80 Ra min.; Material: Thermal conductive plastic; Dimension: Φ60*H110mm; Life: 30000 hours; Warranty: 2 years.

ML-ESL1120-10WE27

10W LED Bulb

Power: 10W (Rated 11.6W); Input voltage: 85-265 Vac/ 50-60Hz; Lamp Base:E26/E27/B22; Light source: SMD 5730; Luminous flux: 900lm±6%; Color temperature:Warm/Natural/Cool White, 2700K-6500K; CRI (Ra>): 70; Driver Type: constant current; Material: Aluminium & diffused PC dome; Dimension: Ø65×129mm; Life: 30000 hours; Warranty: 2 years.

HYA60P-12W

12W A60 LED Bulb

Power consumption: 12W; Voltage: AC 220V, 50Hz; Light source: 5630 LED chips, 24 pcs; Luminous flux: 960-1055 lm; Aluminum + Nano-Thermoplastics; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

HYA65-12W

12W A65 LED Bulb

Power consumption: 12W; Voltage: AC 220V, 50Hz; Light source: 2835 LED chips, 0.5W, 6V/75mA, 22 pcs; Luminous flux: 1100-1200 lm; Aluminum + Thermoplastics; Non-isolated, 4000V hipot tested driver; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

HYA60-4W

4W A60 LED Bulb

Power consumption: 4W; Voltage: AC220V, 50Hz; Light source: 2835 LED chips, 0.5W, 6V/75mA, 12 pcs; Luminous flux: 360-400 lm; Aluminum + Thermoplastics; Non-isolated, 4000V hipot tested driver; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K;

HYA60-5W

5W A60 LED Bulb

Power consumption: 5W; Voltage: AC 220V, 50Hz; Light source: 2835 LED chips, 0.5W, 6V/75mA, 12 pcs; Luminous flux: 450-500 lm; Aluminum + Thermoplastics; Non-isolated, 4000V hipot tested driver; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K;

HYG55-5W

5W A60 LED Bulb

Power consumption: 5W; Voltage: AC 220V, 50Hz; Driver: Constant current, AC 85-265V, 50Hz; Light source: 5630 LED chips, 10 pcs; Luminous flux: 400-450 lm; Aluminum + Nano-Thermoplastics; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

ML-ESL1120-6WE27

6W LED Bulb

Power: 6W (Rated 7.2W); Input voltage: 85-265 Vac/ 50-60Hz; Lamp Base:E26/E27/B22; Light source: SMD 5730; Luminous flux: 520lm±6%; Color temperature:Warm/Natural/Cool White, 2700K-6500K; CRI (Ra>): 70; Driver Type: constant current; Material: Aluminium & diffused PC dome; Dimension: Ø60×108mm; Life: 30000 hours; Warranty: 2 years.

HYA60-7W

7W A60 LED Bulb

Power consumption: 7W; Voltage: AC 220V, 50Hz; Light source: 2835 LED chips, 0.5W, 6V/75mA, 12 pcs; Luminous flux: 650-700 lm; Aluminum + Thermoplastics; Non-isolated, 4000V hipot tested driver; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K;

HYG55-7W

7W A60 LED Bulb

Power consumption: 7W; Voltage: AC 220V, 50Hz; Driver: Constant current, AC 85-265V, 50Hz; Light source: 5630 LED chips, 14 pcs; Luminous flux: 560-630 lm; Aluminum + Nano-Thermoplastics; CRI: >70; Socket type: E27/E26/B22; Color temperature: 2700-3200, 3800K-4300K, 6000-6500K.

XHN A60-8W

8W A60 LED Bulb

Power: 8W; Input voltage: AC 100-240V; Light source: Epistar 2835 LED; Luminous flux: 610-640lm; Beam angle: 200°; Color temperature:Warm/Natural/Cool White; Power factor: 0.5 min.; CRI: 80 Ra min.; Material: Thermal conductive plastic; Dimension: Φ60*H110mm; Life: 30000 hours; Warranty: 2 years.

ML-ESL1120-8WE27

8W LED Bulb

Power: 8W (Rated 9.3W); Input voltage: 85-265 Vac/ 50-60Hz; Lamp Base:E26/E27/B22; Light source: SMD 5730; Luminous flux: 670lm±6%; Color temperature:Warm/Natural/Cool White, 2700K-6500K; CRI (Ra>): 70; Driver Type: constant current; Material: Aluminium & diffused PC dome; Dimension: Ø60×123mm; Life: 30000 hours; Warranty: 2 years.

Sours: https://www.eslightbulbs.com/products/a-line-led-bulbs
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What most people visualize when the "light bulb" goes off in their head and probably the most common type of residential light bulb is the "A" shape. Common sizes of the A bulb are A15, A19, and A21. The number designation in the code is usually the width of the bulb at its widest point designated in eighths of an inch. So an A19 is an A shape bulb and is 2.375 inches in diameter (19 divided by 8).

This LED screw in 16 pack from Amazon is one of the best deal on A19 LED bulbs we've seen at only about $1.50 per LED bulb!  In 2013 we were celebrating when bulbs broke the $10 barrier!!

This code designation applies to almost all types of residential lighting, where the letters stand for the bulb shape and the number is the diameter at the widest point. An exception to this is the twisted compact fluorescent bulb (CFL) that doesn't have a common designation code.

Bulb Shapes The table below shows some of the common residential bulb shape codes.  Thanks to Home Depot light bulb shape page and Natural Resources Canada.

AArbitrary (standard)– universal use for home lighting
BBullet or Blunt Tip– decorative
BRBulging reflector– for substitution of incandescent R lamps
BTBulged tube- Table Lamps
CCone shape– used mostly for small appliances and indicator lamps
CACandle- Chandeliers and Decorative
CIRCircline- Table lamps
ERElliptical reflector– for substitution of incandescent R lamps
FFlame– decorative interior lighting
GGlobe– ornamental lighting and some floodlights
MRMirrored reflector- track lighting
PPear– standard for streetcar and locomotive headlights
PARParabolic aluminized reflector– used in spotlights and floodlights reflector
RReflector- Recessed cans and track lighting
SStraight– lower wattage lamp – sign and decorative
TTubular– showcase and appliance lighting (incandescent) - closets/garages (fluorescent)

Bulb Sizes Thanks to this size chart from Bulbs.com. Take the number and divide by 8 and that is the diameter of the bulb at its widest point.

Bulb Base The final important piece to selecting the right bulb for your application is the bulb base. You don't want to buy a bulb only to find that it doesn't fit in the socket. Most light bulbs used in the home use an Edison Screw Base. This is designated by the "E" in the first letter of the base description. Most CFL and LED replacements for incandescent lights will use the "E" base. From Wikipedia on the Edison Screw Base: "The Edison screw fitting is a system of screw mounts used for light bulbs, developed by Thomas Edison and licensed starting in 1909 under the Mazda trademark. The bulb has a threaded metal base which screws into a matching socket. Most have a right-hand threading that tightens when the lamp is turned clockwise. " And... "Dimensions and tolerances for screw bases are standardized in ANSI standard C81.67 and IEC standard 60061-1. The two standards have mostly been harmonized, although several types exist in only one of the two standards with no equivalent in the other. The designation Exx refers to the diameter in millimeters, even in the U.S., where the bulb glass is listed in eighths of an inch. (For example, E12 has a diameter of 12 mm.) There are four common sizes of screw-in sockets used for line-voltage lamps:

  • Candelabra: E12 North America, E11 in Europe
  • Intermediate: E17 North America, E14 (Small ES, SES) in Europe
  • Medium or standard: E26 (MES) in North America, E27 (ES) in Europe
  • Mogul: E39 North America, E40 (Goliath ES) in Europe.
  • Other screw thread sizes exist for other uses."

Another type of base seen in MR style lamps is the G base, which is a bi-pin style of base.  From Wikipedia on the bi-pin: "The suffix after the G indicates the pin spread; the G dates to the use of Glass for the original bulbs. GU usually also indicates that the lamp provides a mechanism for physical support by the luminaire: in some cases, each pin has two diameters, being larger near the ends, in order to twist-lock into position in the socket (the transition between the two diameters is a right-angle step rather than a taper); in others, the base of the lamp has a groove which can be held by a spring or clip. A lowercase "q" at the end of the designation indicates that it is a quad-pin base, with two bi-pin pairs. These are used with compact fluorescent tubes that plug into a light fixture that has a permanent ballast. There are also double-ended tubes (both halogen and fluorescent) with one pin at each end, as well as high-output fluorescents with recessed or shrouded contacts, which are not covered here. 

 You can see excelent pictures of all types of bases from Bulbs.com and their base chart. Note that the compact fluorescent bases shown are mostly for the higher wattage CFL bulbs found in commercial applications. Most CFL (and LED) bulbs for the home use an "E" style base.

Sours: http://mapawatt.com/light-bulb-codes-shapes-sizes-and-bases
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