15W Warm White LED Downlight Review
General Information
| ID | #138 |
|---|---|
| SKU | DL9-1400 |
| Series | Wattsaver Downlights |
| Manufacturer | Wattsaver (other LEDs from Wattsaver) |
| Fitting Type | Kit (other Kit LEDs) |
| Light Type | Downlight (PAR) |
| Height | 130mm |
| Diameter | PAR35 (110mm) |
| Weight | 618g |
| Warranty | 5 Years |
| Test Date | 2013-05-31 |
| Review Notes | Light sent in wrong product packaging. Price includes $15.95 for recommended driver KAA-12E35IAD. Unit has large heat sink and runs cool as a result. CRI is excellent for a LED light. Designed to fit a 92mm cut-out. Also available in warm white and smaller size and wider angle. A more expensive non dimmable version with 10 year warranty is also available. DC Driver voltage output to LED: 34V. Measured driver current: 342 mA Claimed light source: Edison Edi-Power HR Series. |
| Price | $68.10 (AUD) from led-downlights.net.au on 23rd of July 2015 |
| Rating |  |
|---|
LED Specifications
| Claimed | Measured |
Compared To |
|
|---|---|---|---|
| Watts | 14.9W | 14.4W @ 224V | 54.7W @ 12V |
| Yearly Running Cost[?] | $3.26 | $3.15 | $11.98 |
| Lumens | 1400 lm | 1076 lm | 765 lm |
| Efficiency[?] | 94 lm/W | 75 lm/W | 14 lm/W |
| Lumens/Purchase Price | 21 lm/$ | 16 lm/$ | 170 lm/$ |
| Power Factor[?] | N/A | 0.93 | 1 |
| Color [?] | White | Warm White, 3973K | Warm White, 3015K |
| Angle[?] | 60° | 32° | 45° |
| Dimmable | Yes, Leading or Trailing Edge | Fair | Yes, Trailing Edge |
| CRI (Color Accuracy)[?] | 90 | 92 | |
| Life | 50,000 hours | Not Measured | 6,000 hours |
| Min/Max Voltage | 220V / 240V | N/A | |
| Min/Max Temperature | N/A / N/A | N/A | |
| Measured Temperature | 48°C @ 25°C ambient 118°F @ 77°F ambient |
256°C @ 25°C ambient 493°F @ 77°F ambient |
|
| Flicker Percent[?] | 14% | 3% | |
| Flicker Index[?] | 0.044 | 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.
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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
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: 14%, Index: 0.044 (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 | $56 (AUD) | 15W | 892lm | 88lm/W | Warm White, 2762K | 37° | Kit |
| 15W Warm White LED Downlight | $68 (AUD) | 14.4W | 1076lm | 94lm/W | Warm White, 3973K | 32° | Kit |
| DL9-1200 Dimmable Downlight | $60 (AUD) | 14.4W | 1114lm | 81lm/W | Warm White, 2795K | 68° | 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.