Cheap Chinese Ebay LED 3W MR16 Cree Review

General Information

ID #283
Series N/A
Manufacturer Ebay seller: kunkunh2009 (other LEDs from Ebay seller: kunkunh2009)
Fitting Type MR16 (other MR16 LEDs)
Light Type Downlight (PAR)
Height 44mm
Diameter PAR15 (49mm)
Weight 33g
Warranty N/A
Test Date 2014-06-03
Review Notes Review of the cheapest Chinese MR16 LED available on EBay. Package was crushed and slow to arrive from Hong Kong. Amazingly the $2 price included cost of international shipping. Light failed after a few hours of use. Poor thermal management appears to have led to failure in solder joints and burnt plastic case & rubber seal. Before it failed, this was the hottest LED ever tested. As failure took place before lumen output could be measured, the measured lumen output in this review is only an estimate based on it's lux output and distribution compared to another MR16 with a similar diffuser lens. Colour output under spotlight appeared uneven with some light purple hued spots. Claims CREE LED light source, but it is likely a fake in our opinion. Flicker and CRI are also appallingly bad. Warranty period was a short 3 months (and required shipping back to China). Ebay seller gave refund when shown failure.
Price $2.17 (AUD) from Ebay on 3rd of June 2014


LED Specifications

Claimed Measured Compared To
Watts 3W 5.9W @ 12V
Electronic Transformer
54.7W @ 12V
Yearly Running Cost[?] $0.66 $1.29 $11.98
Lumens 310 lm 150 lm 765 lm
Efficiency[?] 103 lm/W 25 lm/W 14 lm/W
Lumens/Purchase Price 143 lm/$ 69 lm/$ 170 lm/$
Power Factor[?] N/A 0.91 1
Color [?] Warm White, 3300K Warm White, 3350K Warm White, 3015K
Angle[?] N/A 30° 45°
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] N/A 63
Life 15,000 hours Not Measured 6,000 hours
Min/Max Voltage N/A / 12V N/A
Min/Max Temperature N/A / N/A N/A
Measured Temperature 109°C @ 25°C ambient
228°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 87% 3%
Flicker Index[?] 0.441 0.008


Link to manufacturer specifications at time of testing


Spectrum Graph

Representation of color spectrum

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

Graph of measured flicker

Percent: 87%, Index: 0.441 (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.