3W Havit Warm White MR16 Review

General Information

ID #338
SKU HV 9587
Series N/A
Manufacturer Havit (other LEDs from Havit)
Fitting Type MR16 (other MR16 LEDs)
Light Type Downlight (PAR)
Height 43mm
Diameter PAR15 (48mm)
Weight 43g
Warranty 1 Years
Test Date 2015-03-24
Review Notes This LED light uses the same generic case that is used by dozens of other cheap LED lights. The performance is very ordinary and it falls a long way short of it claims, despite its premium price.
The CRI value and efficiency are particularly woeful. The packaging claims that it is a direct replacement for a halogen, but at the same time makes a contradictory claim that a special LED driver is required (no driver is supplied with the globe). Our testing was done on a standard halogen transformer. It is likely the light would flicker less on a DC supply.
Price $22.28 (AUD) from Ozlighting on 23rd of March 2015


LED Specifications

Claimed Measured Compared To
Watts 3W 3.3W @ 237V
Electronic Transformer
54.7W @ 12V
Yearly Running Cost[?] $0.66 $0.72 $11.98
Lumens 200 lm 116 lm 765 lm
Efficiency[?] 67 lm/W 35 lm/W 14 lm/W
Lumens/Purchase Price 9 lm/$ 5 lm/$ 170 lm/$
Power Factor[?] N/A 0.71 1
Color [?] Warm White, 3200K Warm White, 3129K Warm White, 3015K
Angle[?] 45° 25° 45°
Dimmable Not Dimmable N/A Yes, Trailing Edge
CRI (Color Accuracy)[?] N/A 63
Life 50,000 hours Not Measured 6,000 hours
Min/Max Voltage N/A / N/A N/A
Min/Max Temperature N/A / N/A N/A
Measured Temperature 51°C @ 25°C ambient
124°F @ 77°F ambient
256°C @ 25°C ambient
493°F @ 77°F ambient
Flicker Percent[?] 86% 3%
Flicker Index[?] 0.265 0.008



Distribution Graph

Angle: 25° (±12.5° 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: 86%, Index: 0.265 (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.