2014 hot sale high quality LED chip 7colour series
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LED chip 7colour series
The sapphire substrate
less than 270degree
Payment and trade terms
1.T/T :30% deposit,70%balance before shippment
2.sample cost:100%TT or pay in advance
3.Trade term:FOB shanghai/ningbo
1.Mass production :7-15days after confirm order
3.Urgent delivery: by air, by sea,&by express(UPS,FDEX,DHL,TNTect)
Office Time: 1.8:30 a.M to 6:00 p.M (GMT+8) of Monday to Friday 2.Our office is closed on Chinese Public holidays
Payment methods: 1.T/T
Estimated Delivery Time
2-8 business days
3-8 business days
2-10 business days
1-7 business days
6-14 business days
7-12 business days
China Post Air Mail
7-15 business days
China Post SAL
14-30 business days
3-10 business days
30-40 business days
1.3-5 business days for Sample Orders; 7-30 business days for Bulk Orders for Bulk Orders.
2."Business days" means Monday-Friday, excluding holidays.
3.DHL and UPS cannot ship to military or P.O. boxes address
4.The Shipping Service above is for reference only, for any other questions, please feel free to contact us.
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Q:SMD LED lamp working voltage?
18 volts driven high 3030LED lamp (six core series, and 2 core, 3 core series and Design), driving power of up to 1W,1W high voltage 3030 LED (3 volts, 6 volts, 9 volts, 18 volts optional)
Q:What determines the brightness of the patch LED?
The brightness is consistent over a short period of time, that is, only by considering current and voltage consistency.Long term brightness is consistent with the consideration of the spacing and heat dissipation of different circuits. Uneven heat can also affect brightness.
Q:Why is the patch LED blue light dim?
If you choose the brightness of blue light in the light of the relatively high, so when debugging the white balance (by changing the resistance to change the current, and then change the RGB brightness LED lamp), it is difficult to transfer to the pure white. Therefore, when selecting the lamp, the blue light is generally not bright.
Q:How many volts is a single LED on the LED patch band?
3V or so, generally three, a group plus a resistor, power supply with 12V
Q:Patch LED features
The principle of luminescence is that of cold luminescence, not by heating or discharging light, so the component life is about 50~100 times longer than that of tungsten filament bulb, and about one hundred thousand hours.
Q:The quality of the LED patch module
Luminous efficiency。 The LM value per watt is called luminous efficiency. This is an important criterion for judging whether LED is energy-saving or not. The incandescent lamp is about 14.4LM/W, the fluorescent lamp is about 51LM/W, the neon lamp is 43LM/W or so, and the LED is up to 150LM/W at present, but most of the LED light effects in our country are in 60~100LM/W. It should be noted that only the white light can achieve such high luminous efficiency in LED, and that red, yellow and blue are generally relatively low (mainly related to human visual definition). But compared with neon light, there is no heavy metal pollution, easy to maintain.
Q:What does "1210" mean in patch LED?
1210 represents the size of the LED package specification (size, specification), and represents the length and width of the resistanceSpeed adoption!!!
Q:Patch LED light broken one, short circuit can use it?
Only when a constant current source is used, the LED in series can be shorted. For the shunt power supply shunt LED, the open circuit LED can be disabled without having to manage it. The short circuit must be removed
Q:Notes on patch LED
Storage bags are sealed and stored at a temperature of <40 DEG C.
Q:The ten patch LED lights are connected in parallel. The rated power is 5 watts. How much voltage do you need?
The voltage needs to be determined according to the product specification, usually 3.1 - 3.5V