Cheap Chinese Ebay LED 36W Kit Review
General Information
| ID | #288 |
|---|---|
| SKU | L0358-01 |
| Series | N/A |
| Manufacturer | Ebay seller: ledworld2010 (other LEDs from Ebay seller: ledworld2010) |
| Fitting Type | Kit (other Kit LEDs) |
| Light Type | Downlight (PAR) |
| Height | 72mm |
| Diameter | PAR48 (150mm) |
| Weight | 261g |
| Warranty | 1 Years |
| Test Date | 2014-07-02 |
| Review Notes | Vendor claimed this was 36W (12 x 3W Epistar LEDs) and 3000 Lumens. This however is completely fraudulent. In reality it was a disappointing 608 Lumens (at 12 Watts). LED was poorly packed and didn't come with a 3 pin plug. Driver does not pass Australia safety standards, nor is it labeled correctly. Heat sink is poorly connected as the fascia gets hotter than the heat sink. Large surface area still keeps it cool however. CRI and power factor are abysmally low. Despite all this the light is super cheap and it does work (at least for a while). The price also includes international shipping. Vendor confusingly claims warranty period of 3 years, 30days and 7days all at the same time. |
| Price | $12.85 (AUD) from Ebay on 2nd of July 2014 |
| Rating |    |
|---|
LED Specifications
| Claimed | Measured |
Compared To |
|
|---|---|---|---|
| Watts | 36W | 11.8W @ 245V LED Driver Transformer | 54.7W @ 12V |
| Yearly Running Cost[?] | $7.88 | $2.58 | $11.98 |
| Lumens | 3000 lm | 608 lm | 765 lm |
| Efficiency[?] | 83 lm/W | 52 lm/W | 14 lm/W |
| Lumens/Purchase Price | 233 lm/$ | 47 lm/$ | 170 lm/$ |
| Power Factor[?] | N/A | 0.57 | 1 |
| Color [?] | Warm White | Warm White, 2808K | Warm White, 3015K |
| Angle[?] | 120° | 113° | 45° |
| Dimmable | Not Dimmable | N/A | Yes, Trailing Edge |
| CRI (Color Accuracy)[?] | N/A | 59 | |
| Life | 50,000 hours | Not Measured | 6,000 hours |
| Min/Max Voltage | 100V / 245V | N/A | |
| Min/Max Temperature | N/A / N/A | N/A | |
| Measured Temperature | 48°C @ 25°C ambient 118°F @ 77°F ambient |
256°C @ 25°C ambient 493°F @ 77°F ambient |
|
| Flicker Percent[?] | 2% | 3% | |
| Flicker Index[?] | 0.002 | 0.008 |
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Distribution Graph
Angle: 113° (±56.5° from bottom), Maximum lux:
Graph notes: Shows the intensity of the light when viewed from different angles. Normal omni-directional globes have a fairly constant output all the way around (excepting directly above). Downlights have a narrow range at the bottom in which the light is emmited, this determines their angle.
Spectrum Graph
Graph notes: Shows the breakdown of the LED light into its component colors. With short wavelength ultraviolet on the left and long wavelength infrared on the right. The green line represents the relative absolute strength of the light at each frequency, while the red line represents what the typical human eye would see. The human eye is most sensitive to green light, but much less sensitive to purples and deep reds.
Flicker Graph
Percent: 2%, Index: 0.002 (lower is better in both cases)
Graph notes: Shows variation in light output over 1/10th of a second, with relative light output on the Y axis and time on the X Axis. Measured with a photodiode connected to an Oscilloscope. Ideally the yellow line should be flat. Low frequency high amplitude waveforms mean there is a possibility of noticeable flicker, but sensitivity to flicker varies between people. [More details about LED flicker]
Disclaimer: While every effort has been made to ensure the accuracy of these results, each measurement carries an inherent degree of uncertainty and error. Safety and EMC compliance of products to regional or international standards have not been verified unless noted as an ENERGY STAR® LED Lighting Facts, or SSL Quality Scheme certified product. Retailers and importers selling unmarked or unapproved electrical goods can be fined or imprisoned. Mains supplied downlights require installation by a licensed electrician.