14W Warm White LED Downlight Review

General Information

ID #350
SKU Sirius DL7-1400
Series Sirius
Manufacturer Wattsaver (other LEDs from Wattsaver)
Fitting Type Kit (other Kit LEDs)
Light Type Downlight (PAR)
Height 130mm
Diameter PAR28 (90mm)
Weight 472g
Warranty 10 Years
Test Date 2015-07-23
Review Notes This is a high CRI version of WattSaver's original DL7-1400. Suitable for 72-75mm cutout. One of the highest CRIs measured on an LED downlight to date. No visible flicker in no-dimmer, HPM CAT250L leading edge dimmer or Clipsal 32E340UDM universal dimmer, circuit. Dimming performance measured using leading edge dimmer. Running temperature and power factor are good. Very long warranty. Reasonable performance in all areas and high CRI make it a very well-rounded LED kit. Web site claims 94 Lumens per watt (excluding driver), but unit falls a bit short of that claim.
Price $61 (AUD) from led-downlights.net.au on 22nd of July 2015


LED Specifications

Claimed Measured Compared To
Watts 14W 15.6W @ 244V
LED Driver Transformer
54.7W @ 12V
Yearly Running Cost[?] $3.07 $3.42 $11.98
Lumens 1166 lm 948 lm 765 lm
Efficiency[?] 83 lm/W 61 lm/W 14 lm/W
Lumens/Purchase Price 19 lm/$ 16 lm/$ 170 lm/$
Power Factor[?] N/A 0.95 1
Color [?] Warm White, 3000K Warm White, 3018K Warm White, 3015K
Angle[?] 60° 39° 45°
Dimmable Yes, Leading or Trailing Edge Below average Yes, Trailing Edge
CRI (Color Accuracy)[?] 96 95
Life 50,000 hours Not Measured 6,000 hours
Min/Max Voltage 220V / 240V N/A
Min/Max Temperature -20°C / 40°C N/A
Measured Temperature 54°C @ 25°C ambient
129°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 24% 3%
Flicker Index[?] 0.072 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: 39° (±19.5° 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: 24%, Index: 0.072 (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
14W Warm White LED Downlight $61 (AUD) 15.6W 948lm 83lm/W Warm White, 3018K 39° Kit


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.