High brightness light emitting diodes (HB LEDs ) combine high output, high efficiency and long life. Manufacturers are developing devices that can achieve higher luminous flux, longer life, richer colors, and higher luminosity per unit of power. To ensure performance and reliability, accurate, cost-effective testing must be performed at every stage of production. Figure 1 shows the electrical I-V characteristic of a typical diode. Although a complete test procedure can include hundreds of points, probing for a limited sample is generally sufficient to provide good value. Many HB LED tests require a known current source to drive the device and measure its voltage accordingly, or vice versa. Simultaneous signal sources and measurement functions that can be synchronized can speed up system setup and increase throughput. Testing can be done at the die level (wafer and package) or module/subassembly level. At the module/subassembly level, HBLEDs can be connected in series and/or in parallel; therefore, higher currents are typically required, sometimes up to 50A or higher, depending on the application. Some die-level tests use currents in the range of 5 to 10 A, depending on the die size.
LED Multi-White Ribbon
LED multi-white ribbon also can called multi-color LED flexible ribbon. It`s dimmable, colour tempetature has 2700K/5000k. It`s can be used in high-end hotel rooms, hall, restaurants, KTV, bar, loading stage etc. Multi-white Led Ribbon can also used in car, building, stage, building external wall, advertising, fish tank decoration.
Specification of LED Multi-white Ribbon
Product Name: LED Multi-white Ribbon
Input: DC12V/24V
Color Temperature: 2700/5000K
Length: 5000mm
Width: 10mm
Height: 1.3mm
Finish: White
LED Type: 2835
Number of LEDs/M: 2*30pcs
Wattage: 4.8W/M
Light Output: 980Lm
Efficacy: 104Lm/W
CRI ≥80
SDCM ≤3
FAQ:
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
A:Sample needs 3-5 days, mass production time needs 1-2 weeks for order quantity more than 1000pcs
A: Low MOQ, 1pc for sample checking is available
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional.
Led Multi White Ribbon,Warm White Led Ribbon,Led Ribbon For Car And Tv,Multi White Ribbon Shenzhen Jedver Smart Lighting Co., Ltd. , https://www.jederwell.com
Figure 1. Typical HBLED DC I-V curve and test points 
Q1. Can I have a sample order for led light?
Q2. What about the lead time?
Q3. Do you have any MOQ limit for led light order?
Q4. How do you ship the goods and how long does it take to arrive?