6W Sharp COB GU10 Warm White Review

General Information

ID #213
Series 6W Sharp COB
Manufacturer starlight (other LEDs from starlight)
Fitting Type GU10 (other GU10 LEDs)
Light Type Downlight (PAR)
Height 58mm
Diameter PAR16 (50mm)
Weight 83g
Warranty 2 Years
Test Date 2013-10-17
Review Notes Above average efficiency and power factor. But with a fairly narrow bean width, no dimming and some high frequency flicker. Carries C-Tick, CE and RoHS approval labels.
Price $20.90 (AUD) from www.L-E-D.com.au on 17th of October 2013


LED Specifications

Claimed Measured Compared To
Watts 6W 5.9W @ 243V 50.2W @ 242V
Yearly Running Cost[?] $1.31 $1.29 $10.99
Lumens 450 lm 385 lm 498 lm
Efficiency[?] 75 lm/W 65 lm/W 10 lm/W
Lumens/Purchase Price 22 lm/$ 18 lm/$ 144 lm/$
Power Factor[?] N/A 0.94 1
Color [?] Warm White, 3000K Warm White, 3037K Warm White, 2737K
Angle[?] 60° 32° 33°
Dimmable Not Dimmable N/A Yes, Leading or Trailing Edge
CRI (Color Accuracy)[?] 83 81
Life 50,000 hours Not Measured 2,000 hours
Min/Max Voltage N/A / 240V 220V / 240V
Min/Max Temperature N/A / N/A N/A
Measured Temperature 69°C @ 25°C ambient
156°F @ 77°F ambient
192°C @ 25°C ambient
378°F @ 77°F ambient
Flicker Percent[?] 80% 9%
Flicker Index[?] 0.217 0.029



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: 80%, Index: 0.217 (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
6W Sharp COB GU10 Pure White $21 (AUD) 6.2W 406lm 92lm/W White, 4962K 32° GU10
6W Sharp COB GU10 Warm White $21 (AUD) 5.9W 385lm 75lm/W Warm White, 3037K 32° GU10
6W Sharp COB MR16 Pure White $21 (AUD) 6.8W 466lm 92lm/W White, 4969K 33° MR16
6W Sharp COB MR16 Warm White $21 (AUD) 6.8W 420lm 75lm/W Warm White, 2988K 32° 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.