12W Warm White LED Downlight Review

General Information

ID #339
Series N/A
Manufacturer LED Accessories (other LEDs from LED Accessories)
Fitting Type Kit (other Kit LEDs)
Light Type Downlight (PAR)
Height 53mm
Diameter PAR35 (110mm)
Weight 224g
Warranty 3 Years
Test Date 2015-04-08
Review Notes Claimed light source: Samsung SMD 5630 chips. Includes ELECPOWER LD1212 48VDC LED driver. Driver carries CE & SAA approval markings, but not the Australian RCM (C-Tick) approval. Recommended for 90mm cutout. Vendor originally claimed 1200 lumens then after our testing modified claims to 700lm. The price is reasonable and no flicker was observed.
Price $21 (AUD) from LEDaccessories.com.au on 9th of April 2015


LED Specifications

Claimed Measured Compared To
Watts 12W 13.6W @ 242V
LED Driver Transformer
54.7W @ 12V
Yearly Running Cost[?] $2.63 $2.98 $11.98
Lumens 700 lm 673 lm 765 lm
Efficiency[?] 58 lm/W 49 lm/W 14 lm/W
Lumens/Purchase Price 33 lm/$ 32 lm/$ 170 lm/$
Power Factor[?] N/A 0.83 1
Color [?] Warm White, 2850K Warm White, 2899K Warm White, 3015K
Angle[?] 120° 106° 45°
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] 85 80
Life 25,000 hours Not Measured 6,000 hours
Min/Max Voltage 100V / 240V N/A
Min/Max Temperature N/A / 40°C N/A
Measured Temperature 64°C @ 25°C ambient
147°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 2% 3%
Flicker Index[?] 0.003 0.008


Link to manufacturer specifications at time of testing



Distribution Graph

Angle: 106° (±53° 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: 2%, 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]


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.