Answers to questions
Normally,we use Epistar and SanAn chip,and we also use Samsung,Cree,OSRAM chip depend on customer requirement.
What is LM-80?
LM-80 refers to a method for measuring the lumen depreciation of solid-state lighting sources,such as LED packages,modules and arrays.LM-80 was created by members of IES including Philips Lumileds.
What is TM21?
The TM-21 standard picks up where LM-80 left off.Since LED sources are capable of lifetimes well beyond 6,000 hours,TM-21 establishes a standard way to use LM-80 data to make consistent lifetime projections beyond the testing period.TM-21 dictates which values can be used in the calculation based on the sample size,number of hours and intervals tested,and test suite temperature.
What is L90B10@10,000 hours?
L defines the percentage of lumen comparing with the initial lumens, B value means the failure data at the L data. So LB value indicate the real lifetime at a certain hours.
How small bin can we supply?
1 Bin will be the smallest we can source, but normally there will be 2 bins used inside the products if there is no specified.
How small mac adam ellipse can we supply?
The minimum we are doing inside the company was 2.5 steps, standard price in the pricelist was around 4-5 steps, economic type will be at 6 steps.
Now we mostly do the strips with white PCB. If you need other colors ,we can also make the PCB color with yellow,black,green or red.
How is heat shrink pipe works in led strips?
Working condition at -55 to 125 degree, 3 minutes shrinking at 200 degree according to UL224 standard.Color at Transparent with options at Black, Red, Blue,Yellow at customization. Heat shrink Pipe was made of PET,Anti-Electric below 600V, Anti-Fire Ratio at VW-1.
What is CCT shifting and how to control it?
All of the color temperature will be shift by any cover in front of the LEDs, different Glue will have different influence on the whole temperature of LED strips,the shifting curve can be referred by detailed.
What is the max width of the PCB for heat shrink pipe?
When using heat shrink pipe on the led strips, the max width is 13.5mm.For 15mm or above, the pipe make the led strips out of shape.
What does CRI mean and why is CRI important in led lighting?
Color Rendering Index (CRI) is the measurement of how colors look under a light source when compared with sunlight. The index is measured from 0-100, with a perfect 100 indicating that colors under the light source appear thesame as they would under natural sunlight.
What is the difference between CRI and Ra?
The calibration R1 - R15 color sample, is the R1 - R15 color rendering and when a light source compared with reference standard light source, the index value is 100%.The general color rendering index (Ra) is just calibrated R1-R8.
What is the flip chip?
One way to encapsulate the LED Chips into the Pad of SMD, advantage will be better heat emitting and less failure ratio of LEDs.
What certificate do we have?
We have the GS,CE, RoHS certificate for the European clients, and also get UL listed for the American & Canada clients.RCM declaration for the Australia clients,PSE certification for Japanese clients.
Can I solder the LED strips?
Yes, you can solder wire to any of the copper ports to connect strips together.
Can l use a battery to power the light strips?
Yes you can power our strip lights with any 5v/12v/24v power source.
What is the maximum length of LED strip that can be powered?
We sell strips in spools of 16.4 Ft(5 meters).If you want to use them in more than 5M length,we also can do, the Max.length we do is 50 meters.
Can I cut my LED strip lights?
Yes. You can cut the strips with a regular, household scissor at any of the marked cut lines. These lines are designated on the strip by a solid line with the image of a scissor right next to it.
No. LEDs are diodes so they only let power through in one direction. Simply reverse the wires and the strip will work fine.
Can the strips be used in high temperature areas?
No. While LEDs are quite durable and will work great in most any environment, heat is the main cause for shortened LED lifespan. Therefore, the cooler you can keep the LEDs, the longer they will last (if you can keep them below 80℃ you should get the rated life out of them).
Can LED strip and LED strips be dimmed?
Yes, but this should be done by using one of our dimmers between the LED Strip and the output of the Power Supply. It should not be dimmed from a standard wall dimmer.
How many warranty years for the LED strips?
We offer 1yr warranty for our eco-type LED strips,2yr warranty for our standard LED strips and 3yr warranty for our premium LED strips.
What tape do you used in the LED strips?
We have yellow and white 3M tape for the strips and also the Tesa tape to get a strong viscous when paste inside the aluminum profile.
What is the series of the 3M/ tesa tape used in the LED strips?
Normally, we use 3M 300MP, Tesa 4965 in our LED strips. However, 3M 200MP and VHB also available.
Can the LED strips be powered by 12/24VAC?
Most of the LED Strips we are manufacturing are working at DC version, DC shorts for Direct Current,AC shorts for Alternative Current; There is will be AC to DC converter or rectifier required if the existing power source is AC output.
How strong of magnetic strips Sticker?
The stickiness about the magnetic stirp is about 3.8g/cm2.
Which tape has the strongest stickiness?
Usually, the stickiness ranks as:
3M VHB>Tesa 4965> 3M 300MP.
What is the voltage dropping?
Voltage is always dropping by transmitting of current decided by the transmitting material and the size of material, Copper is the best options to transmit current up till now.
If need special improvement on part of the parameters, like CRI or Lumens, we customized the products to meet your need.
Can I print my Logo on the PCB?
Yes, we can print your logo on the strips and the MOQ is 1000M for one type to print the logo,if the quantities is below 1000M, we will charge 50USD per item for PCB redesigning.
Design for anti-static bags?
Usually we used the neutral silver plastic bag and put the label with specification in the middle of the bag. The design on the anti-static Bags is also customized.
Width of PCB?
For 3528 and 2835 strip, the range is 5/8/15mm.For 5050 strip, the range is 10/15mm.For 5630strip, the rang is 10/15mm. For 3014, the range is 8/10mm.For 2216, the rang is 4/6/8/10mm.
What is the best ratio for blue and red?
Blue (wavelength: 455- 465nm): is good for photosynthesis; and help to induce Chlorophyll and Carotenoid, which are necessary for healthy leaves.
Red (wavelength:660-665nm) :is the peak
wavelength for photosynthesis and photoperiodism.Red light is best for blooming and fruits.