Construction and technical parameters of LED lamp
Luminous efficiency: the light effect is also an important factor in LED bulb. The current (August 2013), with the lamp light effect, CREE Nichia chip is about 150-0Lm/W. [light effect testing is not considered here, at present (2013-4 month, CREE announced the highest luminous efficiency for the 276Lm/W laboratory at home in Taiwan], chip beads light effect on 100-130Lm/W under the basic.
Voltage and current: voltage and current are also very important basic parameters of LED bulb. The voltage of the grid in different countries in the world and the voltage used on some occasions are different. The common voltages are 12V, 110V, 220V and 85v-265v. The current into the input current and lamp current. First: input current: can be tested by power supply, different power is different, the instrument shall prevail. Second: lamp current: general high power is between 300mA to 320mA-. A large current of the LED light attenuation effect, so the current stability is also very important. Lamp current and voltage can not give too much, otherwise it will seriously affect the service life of the LED lamp.
Color: conventional color: warm white (WW), 2700-3200k (NW) 4000-4500K, the natural light is white (PW), Leng Baiguang 6000-6500K (CW) cold white 7000-7500k [here cold white difference and jewelry, cool white jewelry light is generally 15000-20000K] in addition, red, green, blue and other single color lamp Chang can do.
