If I’ve missed any information you’d like to know, post here or message me and I’ll update the first posst.
SUNREE REE (1AA)
Advertised specifications:
This REE motile headlamp use the CREE XTE R2 LED light as the main light source and floodlight auxiliary lights to provide more lighting modes for a variety of outdoor activities at night. It comes with high quality headband allowing you to farewell hot and sultry. Its excellent water resistance and anti-shock performance can ensure you security lighting in outdoors.
Specifications:
Function: REE CREE XTE-R2 White LED 110Lm Motile Headlamp
Features:
- With CREE XTE R2 LED chip, the maximum brightness can be up to 110 lumens, provides more lighting modes.
- The middle LED lamp is distance light, the others are floodlight.
- High quality headband, adjustable and flexible, allowing you to farewell hot and sultry.
- Just one button controller, easy to use.
- Excellent water resistance and anti-shock performance can ensure you security lighting in outdoors.
- Light weight, widely used in cycling, camping, fishing, mounting and other outdoor adventures.
LED Bulb:
- Chip: CREE XTE R2 LED
- Quantity: 3
- Luminous Flux: 110 Lumens (Maximum)
Working Modes:
- Distance Light: High, 110Lm / Middle, 30Lm / Low, 4Lm / SOS, 75Lm
- Floodlight: High, 25Lm / Low, 7Lm / Strobe, 25Lm
Waterproof Standard: IPX6
Maximum Lighting Distance: 70 meters
Switch Type: One button
Power Source: 1 x AA battery (included)
Product Weight: 79g
Package Weight: 149g
Product Dimensions(L x W x H ) : 60 x 34 x 28mm
Package Dimensions(L x W x H ) : 113 x 65 x 80mm
After Sales Service: 1 Year Warranty
Package Include:
1 x LED Flashlight
1 x User Manual
1 x AA Battery
1 x Bag
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INITIAL IMPRESSIONS:
I bought this light from ePathChina and shipped it via DHL to my skybox the USA who then shipped it down to me. I bought four of these lights so received a little volume discount. Final price on arrival after shipping+ shipping +tax (luckily only about 14%), the cost came up to about $20US per light. YESSSS!
Received in box is the headlamp, a nice nylon carrying pouch, a single Energizer AA cell expiring 12/24 (wow!!), ‘english’ manual and something in Chinese. The pouch is a lovely touch and has an internal, zippered, mesh section which I presume is for spare cells.
This light is pretty 
The silver and white front and orange headband attachment is really aesthetically pleasing to me.
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The light is light. 
The light weight is quite appealing since the light is intended to be sold to runners for a race.
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One of the things that drew me to this headlamp besides the 1AA source is the two additional flood LEDs. It’s not something I’ve used before and don’t really care for it but, I’d like to start selling these lights and it would be nice for the general public to at least have the choice of either flood or throw. It would be more useful than a spotty beam for reading maps etc.
*1: The spot LED in the light I received is an XP-G2 and not the XTE as described. (Yay!)
*2: The tint of the spot LED is neutral/warm white, very similar to some 4B XTE LEDs I have. (Double Yay!) I remember reading somewhere that a neutral tint is intentional but, can’t find that page at the moment. 
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FUNCTION:
Inserting a cell, I was impressed with the output. Being an unknown brand made in China, I was a bit pessimistic about the actual output but was happy to see that it is quite similar to my NW XPG moded, ‘90’ lumen, Fenix HL20. In fact, the tint is a lot prettier than the fenix’s tint.
The spot beam has a medium sized spot similar to the Fenix and in my opinion is a great balance between flood and throw. The transition between spot and flood is not very sharp
The flood LEDs have a cool white tint and a few artifacts in the beam (due to the squareish ‘reflectors’) which after a few minutes, do not distract too much.
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OUTPUT:
Modes for the spot are in the order: Medium, High, Low, SOS. I’d estimate high output to be 100ish lumens and low to be around 3 lumens. Medium would be around the 40% output point.
The Flood LEDs have the modes high (20 ish lumens,) low (5ish lumens) and beacon which flashes at a frequency of 13 flashes in 10 seconds> 1.3Hz right?
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RUNTIME:
I haven’t done a PROPER runtime test/comparison as yet but, have run an eneloop and a partially used energizer alkaline in the light till the cells were dead. With eneloops, in comparison with the Fenix HL20, with both lights on high the REE ran at least half hour longer (before I turned it off). Runtime was in the range of three hours. Part of the reason for this is that the REE steps down to medium output after a while. During the test, I did step the REE back up to high a few times when I noticed a difference but didn’t watch the lights like a hawk.
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WATER RESISTANCE:
From the design of the light, I had confidence that it would be up to their claimed IPX6 rating. Sadly, for whatever reason, washing the light underneath the tap, water got in 
. Maybe there’s a little gap in the ‘rim’ of plastic on the body contacting the rubber ‘ring’ in the battery cover. I’ll open another light and use it as a tester and see what happens. Drying out the light as per instructions (duh), everything worked fine.
EDIT: I opened up another REE and tested it under the tap and it leaked too. In fact, it drowned in a cup of water. The problem is partly due to the rim of plastic, (which presses on the rubber ‘ring’ ) being missing from the bottom part of the headlamp by the hinge. I assume it is just a bad design and not a defect. Pic 1 shows where the lip ends. Pic 2 shows the rim at the top of the light and pic three shows the bottom of the light where the rim is missing.
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FLASHAHOLIC TYPE STUFF:
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- PWM is BAAAADDDD! cry. On medium and low outputs, I’m constantly conscious of the motion sickness lingering in the background. Honestly, I’m a bit afraid to take this light out on a real run as opposed to using it in my room. If I have to guess, I’d say PWM frequency is under 500 Hz.
2) Heatsinking is Non-existent or to be nice, MINIMAL. ;( The XP-G2 is on a round aluminium star and that’s it! The flood LEDs are on the PCB with the driver… After dismantling the light, I ran it for a few minutes on high and did a tongue test. Ouch. My bottom lip liked the heat even less. I’d guess temperature was under 80deg C. YES, I understand that the XP-G2 LED is rated at 85 deg C but we know that the star and LED die are never the same temperature and I don’t trust the design at all. Yes, I’ll run a few eneloops through one light to see if it fails over time. As a potential benefit for cold climate users: the cell is in direct contact with the star so, some of the heat from the LED warms up the cell.
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CURRENT DRAW:
Spotlight: Medium 250mA, high 1.36A, low 30mA.
Flood: High 300mA, low 100mA.
(If it matters, the DMM is NOT one of those fancy RMS current types.)
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CONCLUSION:
I really think this light has a LOT of potential however, the lack of water resistance is a HUGE negative for me. I’m assuming that that one headlamp was defective since the Youdo 2 that has the same water resistance design and was washed at the same time, didn’t result in water entry. I’m pretty sure that the XP-G2 LED will survive being fried at tongue burning tempertures for a while but I honestly would like heat to be transferred to the outside instead of being trapped in side a plastic light. (I did message the manufacturer.) PWM is my nemesis :Sp but, many doesn’t have a problem with PWM so it’s not a general problem. This REE doesn’t meet the claim of the IPX6 rating and as an outdoor headlamp, this is a no no…
Maybe my perception will change over time but at this moment, I’ll give it 3 1/2 stars out of 5.
UPDATE. I’ve emailed the manufacturer and got a response from them. They are basically saying that i should not wash the light under the tap and that the light should withstand ‘rain’. I’ve explained to them that their claim of IPx6 standard is wrong and that their other light, with the same IPX6 rating, the Youdo 2 which has a complete ‘rim’ is able to be submerged in a bowl of water without problems. After providing pictures, I haven’t received a response from them… Ironically, they have another headlamp with a rating of IPX6 submerged in a bowl of water on the product page…
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WRT the supplier, ePathChina, they have responded initially, in a pretty amusing manner. The responder asked me to send back the ‘rims’ so she can replace them. (I did send the pictures above.) In her most recent response, she offered to send two replacement headlamps of the same or different kind. Not a bad offer at all.
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I do like the REE headlamp and honestly would love for the manufacturer to address the water resistance issues.
I have used it and even this evening i did a one mile ride to work with it on instead of a bike light. In general it really is a nice light. The tint of the main LED in all the 4 lights I bought are exactly the same ie, BEAUTIFUL and the headlamp with an energizer lithium cell is extremely light 
