Review: Remez SunLike E27 LED bulb (5700K, CRI95)

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maukka
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Review: Remez SunLike E27 LED bulb (5700K, CRI95)

User SunLike from sunlikelamp.com sent me a Remez E27 LED bulb for testing.
Store page: http://sunlikelamp.com/index.php?route=product/category&path=59_105
Manufacturer website: https://remezlight.com/en/production/light-for-home/led-bulbs/led-a60-7w...

The main specs by the manufacturer:
-5700K color temperature (also available in 3000K)
-CRI 95
-SunLike SMD 3030 emitters
-455 lumens
-7W power rating (also available in a 9W version)
-Power factor >0.5
-AC voltage range of 170-260V (also available in 110/120V)
-Not dimmable
-30000 hour lifetime
-5 year warranty

The bulb is also available with an E14 candelabra base in 5 and 7 watts.

Measurements

Measurements were made in a 50cm integrating sphere with an x-rite i1pro spectrometer after the bulbs had warmed up for 1 hour. Intensity (lux at 1 meter, candela) was measured outside the sphere at 50cm.

The bulbs were connected to mains power which at the time of testing was at 228V.

Output at 1 hour is 563 lumens. This is significantly brighter than the manufacturer’s spec of 455 lumens. The output drops 16% during the first hour from 667 lumens at turn on.

The bulb is very light so there’s not much heatsinking, which explains the long winded drop in output. Thankfully the power of the bulb is not very high either so it doesn’t get exceedingly hot. I don’t know if the higher power 9W version has the same configuration. In any case the manufacturer provides a 5 year warranty for the bulb.

Power consumption was measured at 6.8 watts at 238 volts with a low power factor of 0.6. Total bulb efficacy is ok for an ultra high CRI light source at 83 lumens per watt.

Maximum output is reached immediately. Light output in lumens was plotted over one hour. Output is stable after the intial warmup.

Color rendering

The CRI data was measured integrated after a 1 hour warmup in an integrating sphere.

Color rendering is excellent at CRI Ra of 98 and R9 of 98. TM-30-18 fidelity index Rf of 98 and gamut index Rg of 101 are also excellent. There’s three distinct but small humps in the spectrum at different wavelengths (450, 520 and 620 nm). There’s no near UV content.

Visually the light is neutral cool white with excellent saturation to all the colors it illuminates.

Load IES TM-30-18 Color Rendition Reports by clicking the thumbnails:

CGATS CRI Data file:
https://pastebin.com/YQAnduan

Color temperature and tint

Tint is very slightly above the black body line. Remember that when LEDs heat up, their duv value almost always decreases and becomes less green/yellow. This was measured after 1 hour in an integrating sphere.

Tint is very even around the bulb thanks to the heavily diffused A60 sized bulb.

Flicker

The switching frequency of of 56kHz is not visible to the eye. The snob index of 0% guarantees that it’s easy on the eyes. High frequency flicker is probably not visible to a camera at high shutter speed either.

AC power draw

Current is drawn in short pulses 100 times a second as the input voltage gets high. There’s no power factor correction which results in a power factor of 0.6.

Cyan line: mains line voltage
Yellow line: current draw of the bulb
Violet line: power draw (voltage * current)

Verdict
The cool white SunLike bulb from Remez offers neutral daylight and one of the best reproduction of colors from an LED light source. It has a reasonable 500 lumen light output and a very affordable price ($7 plus shipping). There’s no visible flicker to the eye or to a camera and the bulb turns on immediately at full power. The heatsinking could be better, but the 5 year warranty should cover any premature deaths.

Please note that the test was done when the bulb was brand new. I can’t guarantee that they will perform similarly after months or years of use.

Edited by: maukka on 02/08/2020 - 07:53
SunLike
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If someone want to buy, I am the dealer of REMEZ with worldwide shipping (6$ for any order) HERE

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SunLike
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If someone want, there is REMEZ review from me (rus language)

there is some photos:


e14 5w & 7w and E27 7w works with 110-120v with ~1% pulse (measured by RADEX LUPIN)
E27 9w with 110-120v pulsed on ~25%
all of these works with 80-100v, but throbbing about 50%
in 9W there is 3.3uf, I upgraded it to 4.7uf, and now it works with 110-120v with ~1% pulse

If someone want to buy some REMEZ bulbs with international shipping ($6 for any order) or find out the price, you can do it HERE

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maukka
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Thanks for the teardown video. I added your store page to the beginning of the review.

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Thanks
I am waiting review from you SunLike∞
it is alternative for REMEZ 9W, but 2.5 times expensive

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RobertB
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SunLike wrote:
If someone want to buy, I am the dealer of REMEZ with worldwide shipping (6$ for any order) HERE

Do you take paypal?

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RobertB wrote:
SunLike wrote:
If someone want to buy, I am the dealer of REMEZ with worldwide shipping (6$ for any order) HERE

Do you take paypal?

yes, but with 5% fee, sorry

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G0OSE
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They have a 5 year warranty – great. But that’s only of any use when buying locally.
Who pays the shipping on a $7 bulb back to China and return shipping back with a new one if/when they break? (which is entirely likely in 5 years).
Of course no one in their right mind is going to ship a $7 bulb back for $6 (and hope the manufacturer doesn’t say ‘it was misuse’) so the warranty is useless really.

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G0OSE wrote:
They have a 5 year warranty – great. But that’s only of any use when buying locally.
Who pays the shipping on a $7 bulb back to China and return shipping back with a new one if/when they break? (which is entirely likely in 5 years).
Of course no one in their right mind is going to ship a $7 bulb back for $6 (and hope the manufacturer doesn’t say ‘it was misuse’) so the warranty is useless really.

Yes, absolutely correct. And from USA shipping to BY much expensive than 6$
I think, that 5 years warranty is a bluff.

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niktak11
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What’s the approximate beam angle?

maukka
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Barkuti
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Neat! 

Quick question for SunLike. I guess that (given bulb shape and reflector) the SunLike6C is a direct replacement for R50 incandescent/halogen bulbs but, in the socket section, any non e27 options are listed as “adapter”? Oh! It's the same for all bulbs.

The socket options for the REMEZ 5-7W E14 are wrong right now, I see two E27/adapter entries.

The Light Innocent I am

Deleting a post and redoing it causes the forum thread answer notifications to become invalid. Thus, if you need to change your just published post, edit it. Thanks.

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It is socket or adapter. The same option in all bulbs. For example there is no REMEZ e14 9w, but with adapter can be. Another bulbs can be with adapter or with socket — depends from model. D70+mm (9+w) there is no GU10 socket, but there is adapter from e27

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My 8W and 2.5 times expensive alternative for REMEZ 9W
http://budgetlightforum.com/node/71624

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