5W MR16 LED-Reflector Downlight Review

General Information

ID #122
Series Aldi Range
Manufacturer Muller-Licht (other LEDs from Muller-Licht)
Fitting Type MR16 (other MR16 LEDs)
Light Type Downlight (PAR)
Height 51mm
Diameter PAR16 (50mm)
Weight 54g
Warranty N/A
Test Date 2013-05-22
Review Notes Correct specs that match those on packaging could not be found on Muller's web site. Warranty information could not be found on Aldi site, nor manufacturer's. Efficiency is low compared to other LED lights.
Price $8.99 (AUD) from ALDI on 17th of May 2013


LED Specifications

Claimed Measured Compared To
Watts 5W 5.1W @ 12V
Electronic Transformer
54.7W @ 12V
Yearly Running Cost[?] $1.10 $1.12 $11.98
Lumens 170 lm 152 lm 765 lm
Efficiency[?] 34 lm/W 30 lm/W 14 lm/W
Lumens/Purchase Price 19 lm/$ 17 lm/$ 170 lm/$
Power Factor[?] N/A 0.56 1
Color [?] Warm White, 3000K Warm White, 3014K Warm White, 3015K
Angle[?] 40° 32° 45°
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] 80 80
Life 25,000 hours Not Measured 6,000 hours
Min/Max Voltage 12V / 12V N/A
Min/Max Temperature N/A / N/A N/A
Measured Temperature 65°C @ 25°C ambient
149°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 3% 3%
Flicker Index[?] 0.005 0.008


Link to manufacturer specifications at time of testing



Distribution Graph

Angle: 32° (±16° 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

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: 3%, Index: 0.005 (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]


LEDs in this Series

Name Price Watts Lumens Efficiency Color Angle Fitting
5W GU10 LED-Reflector Downlight $9 (AUD) 5.3W 227lm 44lm/W Warm White, 3017K 33° GU10
5W MR16 LED-Reflector Downlight $9 (AUD) 5.1W 152lm 34lm/W Warm White, 3014K 32° MR16
6W GU10 Downlight $9 (AUD) 5.6W 337lm 58lm/W Warm White, 3103K 34° GU10
Aldi 10W B22 Globe $11 (AUD) 10.3W 814lm 81lm/W Warm White, 2791K 121° B22
Aldi 10W E27 Globe $11 (AUD) 10.3W 809lm 81lm/W Warm White, 2786K 118° E27
Aldi 3W Mini Bulb $9 (AUD) 3.6W 244lm 82lm/W Warm White, 2795K 233° B22
Aldi 6W B22 Globe $11 (AUD) 6.1W 397lm 67lm/W Warm White, 2736K 138° B22


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.