12W Warm White LED Downlight Review

General Information

ID	#351
SKU	MDL-16D-830
Series	Envirostar
Manufacturer	Telbix (other LEDs from Telbix)
Fitting Type	Kit (other Kit LEDs)
Light Type	Downlight (PAR)
Height	80mm
Diameter	PAR16 (50mm)
Weight	143g
Warranty	5 Years
Test Date	2015-08-03
Review Notes	Driver carries RCM and CE approval markings. Kit is described as 'dimmable with all common rotary style dimmers'. Dimmed without visible flicker on Clipsal 32E450UDM universal dimmer, however did not work at all on a HPM CAT250L leading edge dimmer. Angle and life-time not specified by manufacturer. 15,000 hour lifetime assumed as the minimum. Colour accuracy significantly below what was claimed.
Price	$29.95 (AUD) from onlinelighting.com.au on 2nd of August 2015

Rating

LED Specifications

	Claimed	Measured	Compared To
Watts	12W	10.9W @ 243V LED Driver Transformer	54.7W @ 12V
Yearly Running Cost^[?]	$2.63	$2.39	$11.98
Lumens	800 lm	781 lm	765 lm
Efficiency^[?]	67 lm/W	72 lm/W	14 lm/W
Lumens/Purchase Price	27 lm/$	26 lm/$	170 lm/$
Power Factor^[?]	N/A	0.89	1
Color ^[?]	Warm White, 3000K	Warm White, 3081K	Warm White, 3015K
Angle^[?]	N/A	48°	45°
Dimmable	Yes, Leading or Trailing Edge	Below average	Yes, Trailing Edge
CRI (Color Accuracy)^[?]	84	79
Life	15,000 hours	Not Measured	6,000 hours
Min/Max Voltage	220V / 240V		N/A
Min/Max Temperature	N/A / N/A		N/A
Measured Temperature		62°C @ 25°C ambient 144°F @ 77°F ambient	256°C @ 25°C ambient 493°F @ 77°F ambient
Flicker Percent^[?]		21%	3%
Flicker Index^[?]		0.064	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: 48° (±24° 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

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

Percent: 21%, Index: 0.064 (lower is better in both cases)

Graph notes: Shows variation in light output over 1/10^th 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
12W Warm White LED Downlight	$30 (AUD)	10.9W	781lm	67lm/W	Warm White, 3081K	48°	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.