LEDisong LED Bulb Clear Review

General Information

ID #239
Series LEDisong
Manufacturer Ecopoint (other LEDs from Ecopoint)
Fitting Type E27 (other E27 LEDs)
Light Type Globe
Height 112mm
Width 58mm
Weight 39g
Warranty 3 Years
Test Date 2014-01-06
Review Notes The most efficient bulb tested here to date. Over 100 Lumens / Watt! Claimed replacement for 75W incandescent, however 75W is typically ~1100 lm (see incandescent equivalency chart here), considerably more than manufacturer's 700 lm specification. LED filaments give it a very similar appearance to a classic incandescent bulb, when both on and off (see gallery for illuminated bulb). CRI value is also above average. Incandescent-like glass housing makes bulb considerably more fragile than most other LED lights. We suspect internal filament temperature is significantly hotter than the glass globe temperature, but there is no easy way to check.
Price $41.60 (AUD) from shop.ecopoint.co.nz on 5th of January 2014


LED Specifications

Claimed Measured Compared To
Watts 6.5W 5.6W @ 239V 64.7W @ 246V
Yearly Running Cost[?] $1.42 $1.23 $14.17
Lumens 700 lm 608 lm 811 lm
Efficiency[?] 108 lm/W 109 lm/W 13 lm/W
Lumens/Purchase Price 17 lm/$ 15 lm/$ 406 lm/$
Power Factor[?] N/A 0.71 1
Color [?] Warm White, 3000K Warm White, 2847K Warm White, 2711K
Angle[?] Omni-Directional 287° Omni-Directional
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] 90 91
Life 50,000 hours Not Measured 1,000 hours
Min/Max Voltage N/A / 240V 240V / 240V
Min/Max Temperature N/A / N/A N/A
Measured Temperature 48°C @ 25°C ambient
118°F @ 77°F ambient
158°C @ 25°C ambient
316°F @ 77°F ambient
Flicker Percent[?] 1% 11%
Flicker Index[?] 0.002 0.034


Link to manufacturer specifications at time of testing



Distribution Graph

Angle: 287° (±143.5° 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: 1%, Index: 0.002 (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
LEDisong LED Bulb Clear $42 (AUD) 5.6W 608lm 108lm/W Warm White, 2847K 287° E27
LEDisong LED Bulb Frosted $42 (AUD) 6.4W 561lm 100lm/W Warm White, 2722K N/A B22


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.