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.
TCP 28932277 | 32W Med Base 277V
This TCP 32W MED BASE 277V light bulb uses CFL technology. It uses 32 watts, and has an average rated life of 10000 hours.
TCP 28968 | 68W Springlamp
This TCP 68W SPRINGLAMP light bulb uses CFL technology. It uses 68 watts, and has an average rated life of 10000 hours.
TCP 2P3819 | 19W Par38 Flood
This TCP 19W PAR38 FLOOD light bulb uses CFL technology. It uses 19 watts, and has an average rated life of 8000 hours.
TCP 31032835 | F32T8/835 48" T8 Fluoresct Tube (25Cs)
This TCP F32T8 835 25 CS light bulb uses Linear technology. It uses 32 watts, and has an average rated life of 24000 hours.
TCP 32027 | 27W Circline T6 Lamp
This TCP 27W CIRCLINE T6 LAMP light bulb uses CFL technology. It uses 27 watts, and has an average rated life of 10000 hours.
Tcp 32032-32W Circline T6 Fluorescent
This TCP 32032 bulb is a fluorescent circle lamp that uses 32 watts. It has a G10Q base, and a color temperature of 2,850K. It has 2,200 initial lumens, and an average rated life of 10,000 hours.
TCP 3204031K | 40W Double T6 Circle Lamp 31K
This TCP 40W DOUBLE T6 CIRCLE LAMP 31K light bulb uses CFL technology. It uses 40 watts, and has an average rated life of 10000 hours.
TCP 3204041K | 40W Double T6 Circline Lmp 41K
This TCP 40W DOUBLE T6 CIRCLINE LMP 41K light bulb uses CFL technology. It uses 40 watts, and has an average rated life of 10000 hours.
TCP 32058 | 58W Double T6 Circline Lamp 2700K
This TCP 58W 2700K DOUBLE T6 CIRCLINE LAMP light bulb uses CFL technology. It uses 58 watts, and has an average rated life of 10000 hours.
TCP 3205835K | 58W Double T6 Circline Lmp 35K
This TCP 58W DOUBLE T6 CIRCLINE LMP 35K light bulb uses CFL technology. It uses 58 watts, and has an average rated life of 10000 hours.
TCP 3205841K | 58W Double T6 Circline Lmp 41K
This TCP 58W DOUBLE T6 CIRCLINE LMP 41K light bulb uses CFL technology. It uses 58 watts, and has an average rated life of 10000 hours.
TCP 32418T35K - 18W CFL - Triple Tube - 4 Pin - 3500K
This TCP 18W triple tube light bulb is designed to provide high lumen output for commercial recessed downlights, wall sconces and other general lighting fixtures.
TCP 32442T35K - 42W CFL - Triple Tube - 4 Pin - 3500K
This TCP 42W triple tube light bulb is designed to provide high lumen output for commercial recessed downlights, wall sconces and other general lighting fixtures.
TCP 33113SP30K | 13W Spring Lamp Gu 30K
This TCP 13W SPRING LAMP GU 30K light bulb uses CFL technology. It uses 13 watts, and has an average rated life of 10000 hours.
TCP 33118SP30K | 18W Spring Lamp Gu 30K
This TCP 18W SPRING LAMP GU 30K light bulb uses CFL technology. It uses 18 watts, and has an average rated life of 10000 hours.
TCP 33123SP30K | 23W Spring Lamp Gu 30K
This TCP 23W SPRING LAMP GU 30K light bulb uses CFL technology. It uses 23 watts, and has an average rated life of 10000 hours.
TCP 48913RD | 13W Springlamp Pro Rd
TCP 4891835K | 18W Springlamp Pro
This TCP 18W SPRINGLAMP PRO light bulb uses CFL technology. It uses 18 watts, and has an average rated life of 12000 hours.
TCP 4892750K | 27W Springlamp Pro 50K
This TCP 27W SPRINGLAMP PRO 50K light bulb uses CFL technology. It uses 27 watts, and has an average rated life of 12000 hours.
TCP 4893265K | 32W Springlamp Pro 65K
This TCP 32W SPRINGLAMP PRO 65K light bulb uses CFL technology. It uses 32 watts, and has an average rated life of 12000 hours.
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