The Kelvin Scale:

Color temperature is a kind of visible light that has important applications in lighting. The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that of the light source. Color Temperature is a measurement in Degrees Kelvin that indicates the hue of a specific type of light source, the symbol of unit is K.

Different color temperature light of source also offer different light color, it will bring you a different feeling:
- Higher color temperatures (5000K or more) are "cold", color is green to blue.
- Moderate temperature (3000-5000K) are "cool", color is white.
- Lower color temperatures (2700-3000K) are "warm", color is yellow to red.

Type of Fitting:

These pictures below display the most common fittings. If you know your fitting, you can easily find the right LED bulbs to match.

LED, Incandescent Bulb and CFL of these three different type

1. Luminous Flus & Application Efficiency

LED	Incandescent Bulb	CFL
1W	25W	-----
3W	40W	5W
5W	60W	12W
7W	100W	24W
9W	150W	30W
12W	250W	40W

LED saves 60% of energy compared with CFL.
LED saves 90% of energy compared with Incandescent Bulb.

2. Comparison table for Power Consumption (8hours/day, 365/ year)

LED	Incandescent Bulb
Electric Consumption	Electric Consumption	Electricity Consumption Ratio
1W8365=2.92Kwh	25W8365=73Kwh	2397%
3W8365=8.76Kwh	40W8365=116.8Kwh	1233%
5W8365=14.6Kwh	60W8365=175.2Kwh	1100%
7W8365=20.4Kwh	100W8365=282Kwh	1328%
9W8365=26.2Kwh	150W8365=438Kwh	1566%
12W8365=35Kwh	200W8365=584Kwh	1567%

LED	CFL
Electric Consumption	Electric Consumption	Electricity Consumption Ratio
1W8365=2.92Kwh	----	----
3W8365=8.76Kwh	5W8365=14.6Kwh	66%
5W8365=14.6Kwh	12W8365=35Kwh	140%
7W8365=20.4Kwh	24W8365=70Kwh	242%
9W8365=26.2Kwh	30W8365=87.6Kwh	233%
12W8365=35Kwh	40W8365=116.8Kwh	233%

3. Comparison table for Working Life-span

LED	Incandescent Bulb
Approx 50000 hours/Pcs	Approx 1500 hours/Pcs Bulb
1Pcs LED	33Pcs Bulb

The LED is much more energy efficient and environmental friendly than Incandescent Bulb and CFL.
LED lighting will be the best decision for you.

DescriptionHaving been popularly used in many occasions during our daily life, corn light is really a good embellishment. What we recommend you today is Ultrafire G9 New Dimmable 4W 650LM 2800-3200K Warm White LED Bulb. Adopting high-class PC material, it is lightweight but durable for long-term use. Glass panel with 4-LED ensures brighter light. LED technology allows the lamp to send out soft and bright light. It is so environmentally friendly that it won´t damage your health at all. Most of all, its dimming design allows you to adjust the brightness randomly!

FEATURES

Unique and fashionable look
High energy saving, long operation time, environmental protection
No pollution, no infrared and thermal radiation
Low power consumption and long lifespan
Compact and lightweight, easy to install and dismantle
With dimming function
Wide scope of application; such as home, hotel, school, factory and so on

Specifications

Brand	Ultrafire
Materials	PC
Number	1
Power	4W
Rated Voltage	AC 220V
Connector Type	G9
Emitter Type	LED
Total Emission	1
Theoretical Lumens	650lumens
Color Temperature	2800-3200K
Color BIN	Warm White
Dimmable	Yes
Beam Angle	360 ▲
Dimensions	(2.44 x 0.94 x 0.94)" / (6.2 x 2.4 x 2.4)cm (L x W x H)
Weight	0.42oz / 12g

Package Includes

1 x G9 Bulb