Dimming 36W Led Light Panels For Backlighting Environmental Friendly

1. Double sides welding by our Robot,

then polish the surface to make seamless frame, no light leak.

2. We use AL6063 aluminum, much stronger structure, better heat dissipation and more stable.

3. Frame weight (panel 595*595*10mm) is 450g , to ensure strong structure.

1. Light leak, gap can be seen.
2. Many cheap copies on the market use impure aluminium and use single side hand welding, gap apperas in the panel corner when shake.
3. Frame weight is about 200-300g, not strong enough, easy to deform, and the reflector paper inside the panel can be wrinkled then water ripple appears in panel, poor light uniformity

1. Edge-folded industrial design for back sheet, stronger structure, no light leakage.
2. Hook at each corner, no light leakage, insects can't get in, also for decoration and suspension
3. The cost of edge-folded back sheet is twice of flat ones.
4. Screw by auto robot, high efficiency and robust

1. Flat back sheet, easy to curl up when lock screws, much light leakage, dust and insects get in easily and bring dark spot/area, even beome insect shadow panel lights
2. 80% companies use flat back sheet.
3. Many screws from back view, not beautiful.
4. Screw by hand, low efficiency, not strong

1.Supplied by Kinglight - Top 3 LED packaging manufacturer in China,

equipped with world-advanced 800 LED packaging auto lines, high quality chip

2. 99.99% golden wire in led chip and copper holder to make the LEDs, gold has the best ductility, won't break when heat changes

3. Long lifespan, slow light decay, LM 80 approved

4. Our LED load is about 37%, very low, to prolong life span, lumen maintenance is high over time

for example, for panel 40W, 1000mA,

---use 204pcs 4014 SMD LEDs,0.5w/LED

If=160mA (forward current).12 Serial, 17 Parallel, 

I =1000mA/17=58.8mA,

LED working load is 58.8/160=37%

1. Supplied by small LED packaging factory or big factory for low end market who use cheap chips which are not famous brand

2. Use alloy wire and iron holder to make LEDs, alloy has poor ductility, may get broken when heat changes, which makes LED defective

3. Short lifespan, fast light decay.

4. LED load is 63~104%, fast lumen decay.

for example, for panel 40w, 1000mA

---use 120pcs 2835 LEDs, 0.5w/LED

If=160mA (forward current), 12 Serial, 10 Parallel

I=1000mA/10=100mA

LED working load=100/160=63%

---or use 192pcs 2835 LEDs 0.2w/LED

If=60mA (forward current), 12 serial16 parallel

I=1000mA/16=62.5mA,

LED working load is 62.5/60=104%

Remark: The way to test if the LEDs use copper holder or iron holder :

Use magnet, the LEDs which are on magnet use iron holder.

Patented Design, LED strips fastened by buckle

1. Buckle with bufferring function, avoid LEDs collision by LGP, prevent panel showing blue light when LGP expands after long time lighting up.

2. LED strips fastened by buckle, tight and for direct heat dissipation through aluminum frame

LED strips pasted by adhesive tape

1. No protection of LEDs, LEDs easy to break during transportation or by expanded LGP when heat goes up, bad light uniformity.

2. LED strips sticked on to frame by double sided adhesive tape which influence heat dissipation

use 4014(L40mm*W14mm)LEDs, then can match the light guide plate thickness 2.3~3mm perfectly, we use PMMA material for long-lasting quality.

Silk printing by Japanese ink, Nagase brand, very durable and reliable, uniform light output, high light transmittance rate

use 2835(L35mm*W28mm) LEDs, then should use light guide plate thickness at least 3mm, many companies use PS material for low cost.

PS LGP, cheap price, panel seems very vague and hazy when light up, uniformity is not that good, low light transmittance rate

After UV test for 12hours,

panel uses PMMA LGP is still with good uniformity

.

Panel won't become yellowish, even if used in the room where sunshine comes in.

Uniformity is good over years, very durable

After UV test for 12hours,

panel with PS LGP turns yellowish.

If panel is used in the room where sunshine comes in, PS LGP gets yellowish after 6-12 months, 

brightness drops and panel looks dark and ugly, optical parameters like CCT and SDCM change a lot, fast lumen decay

1. We use two stage (AC-DC, DC-DC) design to achieve flicker free

2. Use two transformers, two-stage design, it is highly reliable solution for flicker free and use TO-220AB high-power Mos pipeline+radiator, flicker free controled under 1%

3. When select material and design, safety and stability are the priority, ensure long-term stability of the quality.

4. Capacitor choose:: Work for 10,000 hours at 105,life time is 50,000H

(environment is 25, each 10 less on the working temperature of the capacitor , capacitor life doubled)

Our capacitor’s working temperature is 60, then final life time of our driver>50,000H

5. Protection conditions: open circuit, short circuit, over voltage, over temperature.

1. Many company use China famous brand but low-cost solution driver

2. Life time can not be guaranted due to not durable components

3. Use one stage design(AC-DC), flicker rate of this kind of driver is about 20%, no any flicker removal circuit or radiator

4. Can’t pass EMI/EMC, even it's marked with CE

5. When select material and driver design, cost saving comes to first.

Driver (High pot test)

Test international standard IEC60598:2009

Pass high pot test>3750V

Can't pass high pot test

Driver (Light surge test)

According to IEC61000-4-5, International standard is 1000V

We pass 1500V, 1.5 times of the standard

Pass 1000V

flickering rate is 0.3%