Blog entry by Nadine Hinkler
A lot of the issues that affect the performance of LED panels are universal to all LEDs, akin to flickering, glowing, burnout and buzzing. For detailed info on tips on how to fight these typical issues with LEDs, take a look at our article Easy methods to Stop Your LEDs from Flickering, Buzzing, Glowing and Burning Out.
There are some issues that particularly affect LED panels. The content on this page takes a closer look at these:
Quick LED panel downside detection
Problems with drivers and voltage conversion
Problems with poor insulation, ventilation and overheating
Problems with low high quality LEDs
How to pick out a quality LED panel
Problems with LED panels failing early
Quick LED panel problem detection
If your LED panel is failing and you are unsure of the fault, there may be a quick and analysis you can do. Try switching on the LED panel and check the table under.
Common LED problems and their doubtless causes
Problem
Likely trigger
The LED panel doesn't illuminate at all
The LED panel flashes
Driver failure
If only a few of the LEDs in the panel are lit
LED failure
Detecting the issue and the possible cause is only half the battle. Within the sections under, you may be able to find the solutions to these problems.
Problems with drivers and voltage conversion
An LED driver regulates the amount of energy that flows through a lighting system. Drivers convert the AC energy from the mains supply to the DC power required to run LED panels and Panel LED light subsequently stop energy surges. LED drivers are small items that are wired to the LED panel. They play a similar role to ballasts in fluorescent lights.
Drivers are vulnerable to overheating. Even drivers that work correctly shall be affected by heat over time. However using low cost, low quality drivers or the wrong driver will imply it's at higher threat of overheating sooner.
This is because the current flowing by means of the system isn’t stored at a continuing stage, so the excess heat generated impacts the driver’s efficiency.
- Voltage from the mains power supply is (240v), a driver converts this to 12v or 24v to run the panel appropriately. If the driver isn’t working correctly then it doesn’t convert this current and keeps the voltage at a constant stage. This means the bulb will flicker and the system won’t react to overloads which suggests the panels are at an elevated risk of burnout.
- If your LED panel isn’t working at all then the most definitely reason for this is faulty inside wiring where the wiring is not linked to the driver accurately.
- Although not technically a fault with the wiring, fitting dimmable LED panels with an incompatible dimmer swap will cause flickering.
Solutions
- Ensure your LED panels are appropriate with the circuits, energy supply and light switches they are operating off.
If you adored this article and also you would like to collect more info pertaining to ceiling light panel on sale i implore you to visit the page. - Put money into again-lit or central-lit panels (where the LED chips are mounted onto the panel, rather than the sting of the panel), as these panels function constructed-in drivers which may help to reduce the issues with drivers outlined above.
- Ask an electrician to examine that the wiring in the lighting system is fitted accurately.
Problems with poor insulation, ventilation and overheating
LED panels must be properly insulated to make sure the heat they produce is dissipated correcting so that they don’t overheat. Quality LED panels are fitted with a heat sink made from a conductive metal (often aluminium) which transfers excess heat away from the panel. If this heat sink is low quality, poorly fitted or not fitted at all then the excess heat may cause the LED chips within the panel to burnout.
Not all LEDs are appropriate to be fitted into enclosed fixtures. Fitting an unsuitable LED into an enclosed fitting can cause it to overheat because the bulb won’t have the appropriate heat sink. This isn’t as much of a problem with LED panels as they are usually designed to fit in enclosed fixtures, however, it’s always worth checking the panels are appropriate to be installed into recessed fittings.
- Poor quality or defective heat sinks may cause LED panels to overheat and burnout.
- If the LED panel driver is faulty then this may also call the panel to overheat (see problems with drivers and voltage conversion above).
Solution
- Only buy LED panels with a appropriately fitted aluminium heat sink. Ensure the panel is designed to be installed into a recessed fitting.
Problems with low high quality LEDs
LED panels are costlier than traditional fluorescent tubes and for that reason shoppers might choose low-cost, low high quality LEDs and anticipate the identical performance from them because the main brands. Low quality LED panels usually function inferior parts that aren’t examined properly.
LED panels feature various components; if any of these parts are low high quality or defective it could possibly affect the general performance of the LED panels.
Problems
- Frame-often made from aluminium, the body comprises the light within the panel. - If the body is simply too mild or is made from a cloth apart from aluminium (cheap LED panels often characteristic a plastic body), then this might create excess heat and increase the chance of burn out from overheating.
- Low quality chips can cause a number of problems including the panel changing into dim or the colour high quality being compromised.
- If low high quality LED chips are utilized in a panel this may produce a ‘blue’ hue which could make a room look cold.
- If it’s not fitted correctly then this will impact on the amount of light and the angle of the light reaching the diffuser.
- A low high quality diffuser, made from acrylic or PMMA rather than polycarbonate, won’t distribute mild as evenly.
- Overtime, plastic diffusers can discolour on the edges and switch yellow, lowering the quality of light produced by the LED panel.
- Issues with the reflector plate may cause glare.
- A poor quality heat sink will imply not sufficient heat is dissipated from the LED chips which can cause the chips to burnout.
- Cheap plastic heat sinks don’t work as successfully as metal heat sinks and might scale back the life expectancy of the LEDs within the panel.
- The higher the again cowl matches the body, the higher the heat dissipation which implies the panel is likely to last longer.
It’s very difficult to identify whether an LED panel is high or low high quality till it's put in. You won’t essentially know you may have a low quality LED till it burns out quickly or produces poor high quality light for example.
Solution: How to pick a high quality LED panel
- Choose a panel that is at the least £15-30 or £30 - 50 for increased finish. In relation to LED panels worth does indicate high quality. Panels underneath £12 will go yellow, ripple or warp a lot quicker.
- Avoid panels that only have a two year warranty. They only have a two year guarantee as a result of they don't seem to be built to final! Good high quality panels will last longer than this.
- Choose a panel that has a gentle guide plate made out of acrylic (PMMA) or methyl styrene (MS).
- Choose a panel that's completed with powder coating as opposed to paint.
- Search for a well-constructed frame.
- Choose a trusted brand. There are plenty of them on the market, here are just a few of our favourites: - Britesource
- Philips
- Osram
- Toshiba
Methyl styrene is the most effective material to choose for the light guide plate (LGP)
There are a couple of minor indications of high quality reminiscent of a panel that's finished with powder coating moderately than paint and a well-constructed body however, the true marker of quality comes right down to the material used to make the sunshine information plate.
There are three materials generally used to make an LGP:
- PMMA
- Polystyrene (PS)
- MS
We recommend choosing an LGP product of MS.
PMMA has the most effective light transmission and sturdiness but can be the most costly - it's a excessive-quality product, but not the most inexpensive.
PS offers good transmission, but it surely tends to turn yellow over time due to wear and tear and the results of heat. It's a well-known challenge within the business and is commonly why these panels have a warranty of solely 2 years. Over time they may ripple of become warped because they aren’t robust enough to handle normal heat exposure. It's the most cost effective possibility of the three, but we would consider it a low-high quality alternative.
MS is a combination of PMMA and PS. It offers superb gentle transmission and is also durable, however at a lower value, is essentially the most value-efficient answer.
Problems with LED panels failing early
Overview
LEDs are extremely fashionable as a result of they are identified to final much longer than commonplace halogen or fluorescent bulbs. Some LEDs can final over 15,000 hours, that means they should final an extremely very long time. This sort of longevity makes LED cost price-effective and environmentally friendly.