Snoman002
October 26, 2023, 1:02am
654
Here are some tests with spectrum results
maukka
Finland
Joined December 31, 2015
719a
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I received a request from Simon from Convoyflashlights to test the new Nichia 719A. I have retired from testing stuff for a while, but I found this one interesting enough to do one more (no trend probably). I hope to get familiar with editing posts on the new website too, forgive me for not being fluent with the new editor.
The 719A is an interesting new led because it is a 6V domeless led without any visible signs of being multi-die, it s…
Yinding
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I can’t find it back on BLF but someone (JaredM?) recently pointed to this Yinding 5050 led on aliexpress as a potential high performance throw led. It has a die size that is slightly larger than an Osram PM1 die and claims to run at 8A which is definity high performance throw area. And the die is round!
Sst-20
Home lights
Waveform Lighting sent me three of their A19 screw base (E27) LED bulbs for testing.
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The models tested are:
Centric Home 2700K *
Centric Daylight 4000K
Centric Daylight 5000K *
The ranges also include a 3000K and 6500K model with similar specs. There’s also several other products lines including LED strips.
Waveform Lighting has to be commended for reporting the actual lighting parameters on their site with photometric reports . They do extensive testing of their own products, so thi…
Lh351d
Kiriba-ru sent me a Samsung LH351D for testing.
The emitter tested is a model number SPHWHTL3DA0CF2R1W2 with 5000K, CRI70 and rated luminous flux of 460lm at 1050mA. It fits on a XP/219/319 MCPCB. Now I’d like to test the higher CRI options, which are also plentiful.
I tested it with the small OP reflector from the Reylight Pineapple. It was sitting on an MCPCB, so no heatsinking and no stress testing at high amps. I’ll put it later in some light
Visually I’d rate it close to the Nichia 219C …
Ikea home light
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The bulb itself utilizes the standard E27 socket. It only weighs 71 grams, which doesn’t instill confidence in the heatsinking department.
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The bulb is sold in Lidl under the LivarnoLux brand and promises an adjustable color temperature range of 2200 to 6500K with dimming functionality.
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The bulb is compatible with Zigbee products. This is great as I didn’t want to buy another gateway.
I only bought the LED bulb, not the starter pack that also contains the gateway and…
More home bulbs
Bedtime Bulb sent me their warm LED bulb for testing.
Manufacturer website: https://bedtimebulb.com/
Store link: Amazon.co.uk
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The main specs by the manufacturer:
-CRI (Ra) 95
–450 lumens
–6W power rating
-AC voltage range of 220-240V, also available in 120V
–2200K color temperature
-Dimmable with some dimmers
–25000 hour lifetime
–50000 cycle lifetime
-Indoor use only
–5 year warranty
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Measurements
Measurements were made in a 50cm integr…
Emisar flashlight
Quite busy at the moment so I’ll just let the numbers speak for themselves.
I was surprised how cool the hotspot looked on max output. Very neutral but skewed towards green on the low modes which is quite surprising considering it uses PWM. The tint shift from lowest to highest is larger than on the 219C D4. Output matches or exceed the specifications.
The battery tube is visibly lighter than the head on mine.
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Here’s some point of comparison.
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[ima…
Olight flashlight
Disclaimer: The Olight M2R Warrior was provided for testing by the manufacturer free of charge
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The M2R is the latest addition to the Warrior series of tactical lights from Olight. The M equals Military/Tactical, the 2 in Olight’s nomenclature means it uses an 18650 battery while the R tells us it has integrated charging. In the M2R there’s a novel metal switch slash charging system for the included USB charger.
Manufacturer’s specifications
Battery: standard 18650 (included, flat top…
Kr4 flashlight
Disclaimer: I received the Noctigon KR4 free of charge from the manufacturer
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The Noctigon KR4 could be considered as a tail switch variant of the popular D4 but it comes with some significant design changes. The version tested here utilizes small domeless Nichia E21A emitters with a constant current driver up to 5 amps. Unlike the other KR4 variants (SST20, XP-L HI, 219C) the E21A version is based on a noFET version of the Anduril firmware, so the output is lower, but the tint and colo…
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