Sample is Free, but the air freight is collect or you pay us the cost in advance.
2、About the quality of the products
We have a very strict quality controlling system which promises that goods we produced are always of the best quality.
3、What’s minimum quantity of an order of your products?
No minimum quantity,you can order any quantity of products.
4、What’s the delivery time?
5-7 work days in stock,7-15 work days out of stock.
5、What’s the maximum length of you aluminum profile that can be transported?
The normal length is less than 2.5m by air,long profile than less than 6m by ship.
6、About the classification of the profile
There are over 100 kinds of LED profiles in the our company . So I sort these led profile as below:
Line profile , recessed profile , Tubo profile , walkover profile , wardrobe profile , stair profile , corner profile , suspended profile , special profile , slide profile .
7、Can I use a battery to power the strip light ?
Yes . You can power our strip lights with any 12V/24V power source .
8、Can I cut the strip lights ?
Yes . You can cut the strips with a regular , household scissor at any of the market cut lines .
This lines are designated on the strip by a solid line with the image of a scissor right next to it .
9、DC Power track installation way
①3M adhesive tape backing: for smooth surface
②Magnet backing: for steel shelves
③Mounting clip: for rough surfaces
10、What is color temperature?
LED Lighting offer lamps in warm, cool and natural white with colour temperatures measured in Kelvin (K).
The lower the color temperature is, the higher temperature of LED is:
Warm white = 2800-3500K
Natural white = 4000-4500K
Pure white = 5000-5500K/6000-6500K
11、Are the items normally in stock?
Absolutely.all led profiles are held in stock ready for 3-5 working day
12、How long will it take to receive my order?
Your order will usually be received by our warehouse within 24 hours of your order confirmation.
13、Can you offer a trade discount?
It depends on your order quantities.
14、What is the warranty period and what does it cover?
3-5 year in general.Actually,different products have different warranty period.
15、What if i require a special,strange or unique led profile,can you help?
Please contact us with your enquiry.we specialise in providing custom product.
16、What are the advantages to using LED luminaires?
LEDs bring several advantages to the lighting industry, including high efficacy and durability, and, with superior life over other lamp sources, their required maintenance is greatly reduced. This translates into energy savings, maintenance savings, and environmental sustainability. There is also the potential for greater optical control (more controllable source), dimming, instant on/off, and reduced rate of lumen depreciation (potential for long application life).
17、How do you verify the performance of your products?
The performance of all of our products is verified by accredited independent 3rd party laboratories.
18、What does LED stand for?
LED stands for Light Emitting Diode.
19、Why do LEDs use such little power?
LEDs do not use a filament where a conductor is heated and light is created. Filament based lighting consumes more power than the light produced. LEDs produce very little amounts of heat and do not use filaments making them far more efficient in consumption and output.
20、How long do LEDs last?
LEDs are rated by manufacturers to operate under normal conditions for approximately 5 years or 50,000 hours of continuous use. As LEDs get older, they tend to dim and fade but aren't susceptible to blinking like incandescent or fluorescents.
21、 Aren't all LEDs the same?
No. LEDs, LED profile light, and LED lighting systems are quite different in design and quality. A good LED lamp or system design is much more efficient than incandescent or compact fluorescent lighting. Unfortunately, most LED lighting available for consumers today is of marginal quality and expensive. Poorly designed luminaries can be relatively inefficient, fail, or deliver poor light characteristics.
22、 Will LED lighting become more efficient over time?
Yes. Even today we are experimenting with LEDs that are generating close to 150 lumens per watt. We can expect to see such LED light sources on the market within the next 5 years.
23、 When I buy LED, should I buy based on watts or lumens?
Always buy based on lumens, watts is a number that is used to determine how much energy it takes to produce those lumens. It is important to pay attention to lumens per watt, or lm/w. The higher the number, the less energy you will need to produce the light. You will notice that some lights take less energy to produce the same amount of light, and this is something you should watch for. Typically, the higher the ratio, the better.
24、 What is CRI?
CRI is Color Rendering Index. It is a measurement of the quality of light. Where as lumens is a measurement of the quantity of light, CRI is the measurement of quality. It is a scale between 0 and 100. 0 is bad, 100 is great. LED's typically are in the 70-95 range. The higher the CRI, the more expensive the LED chip, and therefore the more expensive the product itself.
25、Why choose LED
LED profile light are 3 times brighter than traditional Christmas lights; they use 90% less power making LEDs
more energy efficient towards the environment. Also LEDs light last longer, 100,000 hours longer than your standard Christmas light light.
26、What are LEDS?
LEDs are Light-Emitting Diodes.
27、How about the packages of led profile?
The way of packaging have carton box.actually,the packages could be customied .we could take up your idea.
28、It there a minimum perchase to try LED lights within the United States.
No,there is no minimum purchase.
29、Where do you ship to?
we ship anywhere in the world.
30、If the products are demaged on the way of transportation,how about the claim?
You could put forward a claim toward the transportation company.
31、How do LEDs keep food fresher than conventional light sources?
LEDs do not emit ultra-violet light and do not carry heat in the beam, unlike their conventional counterparts. This helps keep food fresher in refrigerators and cold stores.
32、How do I know that a light fitting is safe?
In Europe, every light fitting must have a CE label. This tells you that the seller claims that the fitting conforms to all the relevant European safety standards.
33、What makes LEDs more robust than other light sources?
LEDs have no gases, filaments and no moving parts to fatigue. They provide light through a one-step process that takes place within the diode. There is no glass to break or screwed contacts to loosen.
34、How is white light produced by LEDs?
LEDs do not directly produce white light. There are two ways in which white light is produced from LEDs as below:
Using a blue LED with a phosphor coating to convert blue light to white light by a process called fluorescence.
Combining red, blue and green LEDs to produce white light. White light is produced by varying the intensities of the individual red, blue and green chips.
35、 Why has the color appearance of the LEDs changed after a period of use?
36、What will happen if I give an incorrect shipping address?
Please confirm your address before ordering! Your product will probably not get to its destination in time for the important occasion if you supply an incorrect address when ordering. Make sure that your address includes apartment or suite numbers if applicable. And the most important thing is to give us your phone number If a package is returned to us because of an address problem, we will reship the package to you or a corrected recipient address. You will be charged the additional shipping fees.
37、What should I do if the goods received are damaged?
All products are carefully wrapped with utmost care to ensure a safe delivery to its destination. In case of damage during shipment, please file your damage claims to the delivering carrier immediately, and notify us within 72 hours after your receipt of the damaged merchandise.
38、Where can LEDs be used?
They can be used almost anywhere. LED replacements are already available for bulb types such as A-shape, PAR reflectors, MR reflectors, decorative, undercabinet, and more. When used on dimmers, particularly dimming systems that support many bulbs, we suggest testing a few LEDs first to test compatibility.
39、Can LEDs be used with dimmers?
Usually, yes. Many LEDs are specifically listed as being dimmable. Some dimming systems work with LEDs better than others, so it's best to test one or two before completely re-lamping a space.
40、What are the advantages of switching to LED?
The advantages of switching to LED are numerous. LEDs use much less electricity than other bulbs, have extremely long rated lives, produce very little heat, do not emit UV or infrared, contain no mercury, are resistant to shock and vibration, and can operate effectively in extremely cold environments.
41、What's the quality of LED light?
If you buy quality product, the light quality is excellent. Color Rendering Index (CRI) is generally used to measure light quality on a scale from 1-100. Most LEDs have a CRI rating of at least 80, and many are rated 90 and above.
42、Are there rebates/incentives/tax credits available for switching to LED?
In many cases, yes. In order to find out if you are eligible for a rebate or other incentive program, you can reference the Department of Energy's DSIRE site, or call a Bulbs.com Lighting Specialist.
43、Is an LED going to produce enough light to replace my current bulb?
For most applications, yes. Off-the-shelf LED products are now reliably replacing incandescent equivalents of up to 100 watts, and specialty products are available to replace even higher wattages. If you'd like to learn more about LED light output, take a look at this article on light output.
44、What is an LED strip light and how does it work?
A LED strip light is a flexible circuit board that is populated with LEDs. Strip lighting allows you to install powerful, energy efficient, discreet lighting fixtures in places you normally wouldn’t be able to reach.
45、Can flexfire LED strips be cut ?
Yes, they can be cut to desired lengths.
46、If I cut down my LED lights, how do I then connect it to a Driver unit?
4. The surrounding environment(environmental brightness more dark, eyes adjust to the brightness is lower, glare is more remarkable).
87，What is cabinet type?
The Cabinet type is frame of the LED display. We use aluminum profiles for indoor and behind the window displays and sturdy steel case for outdoor displays.
88、I did not receive all my products, or some items are not what I purchased. What do I do?
There are occasions when an order is shipped from multiple locations and will arrive at different times. In the event that all material is not delivered, please contact the appropriate customer service team.
If you believe you have received the wrong product, please verify the item number of the product you received against the order confirmation email and/or packing list. If anything does not match, please contact the appropriate customer service team so we can assist in getting the wrong item(s) returned and the order corrected.
89、Is there any profiles suitable for villas?
yes,there are recessed profile.
90、Which kind of profile I should choose if I want to decorate my wardroble?
we have special profile for wardroble.
91、What is the lifespan of an LED?
An LED doesn’t burn out like a standard lamp so individual LEDs do not need to be ordinarily replaced. Instead the LED gradually produces lower output levels over a very long period of time.
LEDs from reputable manufacturers have an average rated life of 50000+ hours. When compared with Incandescents and CFLs under same usage and conditions an LED lamp could last for 15years before replacing.
93、Constant Current (CC) LED Drivers
CC LED drivers are designed to maintain a Constant Current during operation. A CC LED driver balances the output current from each channel to ensure reduced EMI interference and maintain the long lifetime of LEDs. The CC LED driver circuit allows the driver to operate in the ‘constant current region’ also ensuring there is no variation in the brightness of the LEDs. This means you do not have to use resistors or control the current being fed to the LEDs so they can be used in series as long as the forward voltage is within the specified output range of the LED power driver.
CC devices must be wired in series.
CC Led drivers are suitable for a wide range of applications including architectural lighting; task lighting; medical lighting; transportation lighting; lit signage; safety and security lighting and outdoor area lighting.
FRIWO’s range of LED drivers can be used in both CC and CV mode.
94、How far away can the driver be mounted from the LEDs?
To determine this you need to understand the voltage drop in the wiring between the LED driver and the LED module. Too much voltage drop can reduce the light output from the LED system. The acceptable distance is determined by the load and the conductor size. With Constant Voltage applications you are limited since the voltage is normally fixed at either 12V or 24V and with a significant drop in voltage you may visually be able to see the difference in light output.
With Constant Current drivers there is far more flexibility since the driver will automatically supply more voltage in order to provide the necessary current. The exception to this is if the LED module was already using the entire output voltage capability of the driver in which case the distance would be limited in a similar way to the Constant Voltage drivers.
95、What is the difference between Constant Voltage (CV) and Constant Current (CC) drivers?
With Constant Voltage the LED module only requires a fixed voltage often 12VDC or 24VDC. The current is usually regulated by either resistors that have been wired in series with the LEDs or by an on board/built in regulator that the LED module may have.
CV loads may be added in parallel across the output of the driver until the maximum output current is reached.
This arrangement is often used in installations where the number of LED modules being connected is unknown however may provide inconsistent Led performance and reduced life.
With Constant Current the reverse is true. The current is fixed by the driver whilst the voltage will vary depending on the load. The more LEDs that are attached the higher the output voltage will be up to a maximum set by the driver. This can provide uniform brightness and colour behaviour of the LEDs with no negative impact on LED Lifetime.
This methodology is usually used when the load/number of LEDs is known and you want to achieve optimal efficiency.
FRIWO′s range of LED drivers can be used in both CC and CV mode. (Link)