Light Bulbs
LIGHT BULB COATINGS REVEALED
Most light bulbs are available with a variety of coatings, or, no coating at all. Clear bulbs are useful when a stark, intense luminance is desired. If clear incandescent and halogen bulbs are fully exposed, the human eye will see the illuminated tungsten filament directly. This is used to good effect in Edison-style historic reproduction and vintage bulbs.
Clear bulbs can create hard shadows that in most cases are not desirable. One solution is "inside frost," the most common bulb coating. It is applied to most bulb types and sizes to provide soft appearing illumination. Frost produces moderate diffusion of the light with almost no reduction in light output.
Some bulbs come with a white coating. Finely powdered white silica coats the inside of the bulb. The result is more diffuse light than inside frost, minimizing shadows with very little absorption of light.
So called "daylight" incandescent bulbs are coated with neodymium that gives a bluish appearance to the light. These bulbs are not true full-spectrum bulbs; rather, they give the appearance of daylight by filtering out the warmer wavelengths light.
Other specialty coatings, such as for shatter-resistance, are also available. If you have any special coating needs please call us.
CONFUSED BY LIGHT BULB DESCRIPTIONS?
Light bulb descriptions can seem arcane, but they tell a lot about the bulb before you ever read the fine print. Let's look at two examples. Many bulb descriptions include a letter followed by a number. A few examples: A19, BR30, PAR20, ED28, T8. The letters are a code for bulb shape (Bulged Reflector, etc) and the number is the diameter of the bulb, at the widest point, in 1/8 inch increments. To calculate the diameter in inches, simply divide the number by 8. Now look at a typical fluorescent bulb description: F32T8/841. Translation: F is fluorescent, 32 is watts, T is shape (tubular), 8 is diameter (1 inch) and 841 gives you both CRI and color temperature information. The first number tells you the color temperature range; in this case in the 80s. The second two numbers indicate color temperature, so 41 means 4100K.
100W Mercury Vapor Medium Base 3800K (Delux White) Coated
Cross Reference: GE 12467; Philips 35658-4 (H38MP-100/DX).
100W Mercury Vapor Medium Base R40 Flood 3900K (Delux White)
Technical notes: 140 degree beam angle, wide flood. Cross Reference: GE 36495,Philips H38BP-100/DX 31947-5, Osram Sylvania 69405.
100W Mercury Vapor Mogul Base 4000K (Delux White) Coated
Cross Reference: Osram Sylvania 69408, GE 22575, Philips 33713-9.
1025 Bulb - 14.1W 6V RP11 Miniature Lamp
This Topbulb 1025 bulb with ANSI code 1025 uses 14.1 watts and 6 volts. It has a P15S30 base, and an average rated life of 75 hours. It has a RP11 lamp shape, and is an incandescent bulb.
1025 BULB.
1034A Bulb | 1.8/0.593A, 12.8/14V, 23/8.3W, S8, BA15D Base
This incandescent bulb with ANSI code 1034A uses 1.8 / 0.593 amps, 12.8 / 14 volts, and 23 / 8.3 watts. It has a S8 lamp shape, and BA15D base. The 1034A bulb has an average rated life of 200 / 5000 hours.
105W 277V CFL - 400W Equal - 4100K Cool White Light
This Eiko SP105/41/MOG-277V 4412 bulb uses 105 watts and 277 volts. It has a E39 mogul base, and an average rated life of 8000 hours. It has a T5 lamp shape, and is a fluorescent bulb.
CF105/277V BULB.
105W CFL - 400W Equal - 4100K Cool White Light - Mogul Base
1076 Bulb | 1.8A 12.8V Clear S8 Double Contact Candelabra Bayonet Base
This Eiko 1076 1.8A 12.8V clear S8 bulb with a double contact candelabra bayonet base is designed for long lasting and reliable performance. Applications include automotive and signal/display. Cross reference: GE (26854), 34- 0021531-00.
10C7 Bulb 10W 120V C7 Incandescent Candelabra Base Clear
This Eiko 10C7/120V 40073 bulb uses 10 watts and 120 volts. It has a E12 candelabra base, and an average rated life of 5000 hours. It has a C7 lamp shape, and is an incandescent bulb.
10C7 BULB.
10C7DC Bulb 10W 120V C7 Incandescent Double Contact Bayonet Base Clear
This Eiko 10C7DC/120V 40154 bulb uses 10 watts and 120 volts. It has a BA15D base, and an average rated life of 5000 hours. It has a C7 lamp shape, and is an incandescent bulb.
10C7DC BULB.
10CAC Bulb 10W 120V CA7 Incandescent Candelabra Base Clear
This Bulbrite 10CFC/20/3 403210 bulb uses 10 watts and 120 volts. It has a E12 candelabra base, and an average rated life of 1500 hours. It has a CA7 lamp shape, and is an incandescent bulb.
10CAC BULB.
10ESB5 | 0.035A 10V Clear Slide 5 Base Bulb
This 10ESB5 0.035A 10V clear bulb with a slide 5 base provides consistent, quality illumination. Applications include telephone lamp.
10S11N/F Bulb 10W 130V S11 Frosted Incandescent Intermediate Base
This Standard 10S11/F/1M/E17/130V/STD 50165 bulb uses 10 watts and 120 volts. It has a E17 intermediate base, and an average rated life of 1500 hours. It has a S11 lamp shape, and is an incandescent bulb.
10S11N/F BULB.
10S6/120V Bulb - 10W 120V S6 Clear Incandescent Candelabra Base Lamp
10S6 bulb cross reference: Osram Sylvania 16726.
10W 120V G12 Incandescent - Globe - White - Candelabra Base
This Bulbrite 10G12WH 300010 bulb uses 10 watts and 130 volts. It has a E12 candelabra base, and an average rated life of 2500 hours. It has a G12 lamp shape, and is an incandescent bulb.
10G12/W BULB.
10W G12 Incandescent Globe - Candelabra Base - Red
This Bulbrite 10G12R 306010 bulb uses 10 watts and 130 volts. It has a E12 candelabra base, and an average rated life of 2500 hours. It has a G12 lamp shape, and is an incandescent bulb.
10G12R BULB.
10W MR8 Halogen 9 Degree Beam Covered Glass GZ4 Base
This Satco 10MR8/NSP S4646 bulb uses 10 watts and 12 volts. It has a GZ4 base, and an average rated life of 2000 hours. It has a MR8 lamp shape, and is a halogen bulb.
10W MR8 narrow spot.
110/55W PAR36 Sealed Beam
This GE 4811 24980 bulb with ANSI code 4811 uses 110 watts and 28 volts. It has a G16T base, and an average rated life of 400 hours. It has a PAR36 lamp shape, and is an incandescent bulb.
Applications: military headlamp.
1129 Bulb 6.4V 2.63A S8 Incandescent Single Contact Bayonet Base
Cross reference: GE (26872).
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