Light BulbsIntermediate

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.
58 product(s) found
1
Price $1.8
2

15W 130V S11 CLEAR INCANDESCEN.

Item No.106389 In stock
Price $1.95
3

20W 130V T6-1/2 FROSTED INCAND.

Item No.106398 In stock
Price $1.61
4

25R14/FL/INT.

Item No.300256 In stock
Price $6.95
5
Price $1.95
6

25T6.5/CL/INT BASE 130V L/LIFE.

Item No.300263 In stock
Price $1.95
7

25T6.5/IF/INT BASE 130V L/LIFE.

Item No.300265 In stock
Price $1.26
8

3W GERMICIDAL E17.

Item No.106333 Low stock
Price $7.5
9
Price $8.95
10

Bulbrite 104240-40W 130V FROST.

Item No.101397 Low stock
Price $1.99
11

Bulbrite 104241-FAN BULB.

Item No.101396 Low stock
Price $1.86
12

Bulbrite 702410 10S11TG.

Item No.101358 In stock
Price $1.95
13

Bulbrite 702610 10S11TP.

Item No.101359 In stock
Price $1.95
14
Price $7.95
15

Bulbrite 709109 7W 120V C9 INTERM.

Item No.101469 In stock
Price $0.91
16
Price $0.95
17

Bulbrite 709619 7C9TP.

Item No.101471 Low stock
Price $0.91
18
Price $0.91
19

Eiko 15100 FSA 775W MR16 14 DEGREE.

Item No.101802 Low stock
Price $7.95
20

Eiko 15102 FSB 75W MR16 22 DEGREE.

Item No.104555 Low stock
Price $5.95