Master LED 5.5W MR16 Review

General Information

ID #284
Series MASTER LEDspot
Manufacturer Philips (other LEDs from Philips)
Fitting Type MR16 (other MR16 LEDs)
Light Type Downlight (PAR)
Height 42mm
Diameter PAR16 (50mm)
Weight 44g
Warranty 5 Years
Test Date 2014-06-10
Review Notes Non-dimmable. Carries RCM and CE approval label. More efficient and similar lumen output to Philips' 7W dimmable MR16 from the same series. Excellent power factor. Good CRI and lumen output for it's price. This is the highest-scoring non-dimmable MR16 tested here to date. We wouldn't normally suggest using a MR16 fitting for LEDs, but if you do want a MR16, this is one of the better options.
Price $14.95 (AUD) from Bunnings Warehouse on 9th of June 2014


LED Specifications

Claimed Measured Compared To
Watts 5.5W 6W @ 12V
Electronic Transformer
54.7W @ 12V
Yearly Running Cost[?] $1.20 $1.31 $11.98
Lumens 400 lm 410 lm 765 lm
Efficiency[?] 73 lm/W 68 lm/W 14 lm/W
Lumens/Purchase Price 27 lm/$ 27 lm/$ 170 lm/$
Power Factor[?] N/A 0.99 1
Color [?] Warm White, 3000K Warm White, 3143K Warm White, 3015K
Angle[?] 60° 66° 45°
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] 80 84
Life 25,000 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 63°C @ 25°C ambient
145°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 3% 3%
Flicker Index[?] 0.003 0.008


Link to manufacturer specifications at time of testing



Distribution Graph

Angle: 66° (±33° 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: 0.003 (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
Master LED 10W MR16 $59 (AUD) 11.4W 394lm 40lm/W Warm White, 3012K 59° MR16
Master LED 5.5W MR16 $15 (AUD) 6W 410lm 73lm/W Warm White, 3143K 66° MR16
Master LED 7W MR16 $19 (AUD) 8.1W 387lm 54lm/W Warm White, 3112K 59° MR16


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.