COB LED MR16 7W Spotlight Review

General Information

ID	#217
SKU	N/A
Series	N/A
Manufacturer	Ebay seller: australiandoll (other LEDs from Ebay seller: australiandoll)
Fitting Type	MR16 (other MR16 LEDs)
Light Type	Downlight (PAR)
Height	75mm
Diameter	PAR16 (50mm)
Weight	63g
Warranty	2 Years
Test Date	2013-10-24
Review Notes	This is the most efficient MR16 tested to date. But it also has one of the worst CRI values seen to date. As with many EBay lights performance claims have been exaggerated. Ships in a white box with no markings. Carries CE approval and RoHS labels. No RCM or C-Tick approval. Claimed light source: Epistar Chip. Manufacturer claims this globe is dimmable. Severe flicker and no dimming when connected to a leading edge dimmer. Severe flicker on most dimming levels and limited dimming performance was measured using a universal dimmer. Use on either leading edge or universal dimmers will likely damage the electronics and consequently shorten the life of this globe.
Price	$15 (AUD) from Ebay seller australiandoll on 23rd of October 2013

Rating

LED Specifications

	Claimed	Measured	Compared To
Watts	7W	6.8W @ 12V Electronic Transformer	54.7W @ 12V
Yearly Running Cost^[?]	$1.53	$1.49	$11.98
Lumens	710 lm	570 lm	765 lm
Efficiency^[?]	101 lm/W	84 lm/W	14 lm/W
Lumens/Purchase Price	47 lm/$	38 lm/$	170 lm/$
Power Factor^[?]	N/A	0.59	1
Color ^[?]	Warm White	Warm White, 3138K	Warm White, 3015K
Angle^[?]	90°	70°	45°
Dimmable	Not Dimmable	Below average	Yes, Trailing Edge
CRI (Color Accuracy)^[?]	85	62
Life	60,000 hours	Not Measured	6,000 hours
Min/Max Voltage	N/A / 12V		N/A
Min/Max Temperature	-20°C / 55°C		N/A
Measured Temperature		68°C @ 25°C ambient 154°F @ 77°F ambient	256°C @ 25°C ambient 493°F @ 77°F ambient
Flicker Percent^[?]		4%	3%
Flicker Index^[?]		0.009	0.008

Link to manufacturer specifications at time of testing

Dimming measurements

Graph notes: Dimming performance can be highly dependant on the type of dimmer, the number of lights in the circuit and other factors. Results in your house might vary. Mouse over the graph for more details. Position 10 = Not dimmed. Position 1 = Fully dimmed.

Distribution Graph

Angle: 70° (±35° 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: 4%, Index: 0.009 (lower is better in both cases)

Graph notes: Shows variation in light output over 1/10^th 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.