RovyVon Angel Eyes E4Ti Flashlight Review
The RovyVon Angel Eyes E4Ti is a titanium keychain flashlight that’s great for EDC, and has unusual appointments over the standard E series!
Official Specs and Features
Here’s a link to the RovyVon Angel Eyes E4Ti flashlight product page.
Versions
There are a bunch of versions and a bunch of bodies! There’s blue, orange, green, black, gunmetal, and Desert Tan (only E3 Pro model, though), the orange with the transparent glow-in-the-dark body (reviewed here), and this E4Ti model, which is of course titanium.
There are also emitter options. This version (titanium) doesn’t have any secondary (or “side”) emitters, but the front is available in cool white or warm white (seen here).
Price
The RovyVon Angel Eyes E4Ti flashlight sells for $169.95 without tritium. Adding tritium (four vials) bumps the price up to $229.95. With the current scarcity of tritium, that’s probably not a bad upcharge to have them already installed.
The coupon code “REDDIT” will get 10% off at rovyvon.com!
Short Review
The RovyVon Angel Eyes E4Ti flashlight has all the characteristic RovyVon-ness that you’d want, but also is available in multiple emitter options including Warm white High CRI x2 (seen here.) The ability to run a single AAA cell is great, as well as running from the internal LiPO too. I love the “extra” that this light is. It’d be easy to just write this one off as another Angel Eyes, but the extra parts are actually something extra – tritium slots! Don’t sleep on this model!
Long Review
The Big Table
| RovyVon Angel Eyes E4Ti Flashlight | |
|---|---|
| Emitter: | Luminus SST-20 (Warm White) |
| Price in USD at publication time: | $169.95 |
| Cell: | 1xLiPO |
| High Runtime Graph | Medium Runtime Graph |
| LVP? | Yes |
| Switch Type: | E-Switch |
| Quiescent Current (mA): | ? |
| On-Board Charging? | Yes |
| Charge Port Type: | USB-C |
| Charge Graph | |
| Power off Charge Port | Lowest two modes only |
| Claimed Lumens (lm) | 500 |
| Measured Lumens (at 30s) | 372 (74.4% of claim)^ |
| Candela per Lumen | 6.4 |
| Claimed Throw (m) | 25 |
| Candela (Calculated) in cd (at 30s) | 144lux @ 3.827m = 2109cd |
| Throw (Calculated) (m) | 91.8 (367.2% of claim)^ |
| Claimed CCT | 4000 |
| Measured CCT Range (K) | 3800-4000 Kelvin |
| Item provided for review by: | RovyVon |
| All my RovyVon reviews! | |
| RovyVon Angel Eyes E4Ti Flashlight | |
|---|---|
| Emitter: | Luminus SST-20 (Warm White) |
| Price in USD at publication time: | $169.95 |
| Cell: | 1xAAA |
| High Runtime Graph | |
| LVP? | |
| Switch Type: | E-Switch |
| Quiescent Current (mA): | ? |
| On-Board Charging? | Yes |
| Charge Port Type: | |
| Charge Graph | |
| Power off Charge Port | Lowest two modes only |
| Claimed Lumens (lm) | 70 |
| Measured Lumens (at 30s) | 58 (82.9% of claim)^ |
| Candela per Lumen | 6.4 |
| Claimed Throw (m) | 25 |
| Candela (Calculated) in cd (at 30s) | 29lux @ 3.028m = 266cd |
| Throw (Calculated) (m) | 32.6 (130.4% of claim)^ |
| Claimed CCT | 4000 |
| Measured CCT Range (K) | 3800-4000 Kelvin |
| Item provided for review by: | RovyVon |
| All my RovyVon reviews! | |
^ Measurement disclaimer: Testing flashlights is my hobby. I use hobbyist-level equipment for testing, including some I made myself. Try not to get buried in the details of manufacturer specifications versus measurements recorded here; A certain amount of difference (say, 10 or 15%) is perfectly reasonable.
What’s Included
- RovyVon Angel Eyes E4Ti flashlight
- Pocket clip
- Split rings (2)
- Spare charge port covers (2)
- Soft (but formed) EDC carry case
- Manual etc
Package and Manual
Build Quality and Disassembly
The big bit of news about this version, the E4Ti is that the body is titanium! That’s pretty cool. It means there are some different build characteristics about the body than on the others (like the E5).
For example, this build is a sort of metal sleeve with guts that look to be slid in through the tail end.
There are screws along the body in places that aren’t screwed together like the plastic bodies, too.
These are TORX screws (probably T6, but definitely in the “small” range).
Also, the RovyVon Angel Eyes E4Ti flashlight offers tritium slots! There are four in the head – each corner has what I call “peekaboo” slots. The design allows the tritium to be seen from the side and front, too!
The titanium version, just like the acrylics, uses a lever for accessing the battery compartment. I find these to be just a bit difficult to operate, but with a knife blade or something, it’s very easy. You’d probably want for it to be a bit on the “less likely to accidentally open” side of things, so this is good.
This titanium version also has a fancy little icon demonstrating how to open the latch.
That ring between the metal body and metal head is a glow-in-the-dark ring!
Size and Comps
Size: 66.1mm/2.6” (L)27.5mm/1.08” (W)13.5mm/0.53” (H)
Weight: 58g
Those are the official dimensions, but you might note that this is the same size as listed for the E5. The RovyVon Angel Eyes E4Ti flashlight is in fact a bit bigger than the E5.
If the flashlight will headstand, I’ll show it here (usually the third photo). If the flashlight will tailstand, I’ll show that here, too (usually the fourth photo).
Here’s the test light with the venerable Convoy S2+. Mine’s a custom “baked” edition Nichia 219b triple. A very nice 18650 light.
Also seen above is the light beside my custom engraved TorchLAB BOSS 35, an 18350 light. I reviewed the aluminum version of that light in both 35 and 70 formats.
Here’s the E4Ti beside the E5 – as you can see, the E4Ti is just a touch longer than the E5.
Retention and Carry
The RovyVon Angel Eyes E4Ti flashlight uses a typical RovyVon-style pocket clip. The clip hugs the body in a very tight manner. One set of grooves along the edge to allow just one clip position, but you could go front or back easily.
There are also a couple of split rings included. You could probably use either of those, and they’ll attach easily on this tailcap loop.
Power and Runtime
There are two power sources for the RovyVon Angel Eyes E4Ti flashlight. First is an internal LiPo battery. As with many RovyVon flashlights, this battery is not user-serviceable.
The other power source is a 1.5V AAA cell. I’ve used this Ikea Ladda NiMH cell for testing, but other types should work fine too (ie, primary alkaline, etc). A 10440 cell is officially supported, though! RovyVon said they don’t list it as supported because of some amazon regulations. Also, it’s silly-hard to find good 10440 cells! (But that’s not the fault of RovyVon.)
There are some interesting points to make about the power source. The different power sources have different output levels. If the E5 has only the LiPO, then the output for the highest 3 modes is higher. If there’s an AAA cell installed, you get the lower modes.
The body has two little indicating LEDs to show which power source is being used, too. As stated above, the indicator lights on the body (beside the switch) will show which power source is being used. And if there’s an AAA installed, it’ll default to AAA! (This is selectable, though!)
Now, one interesting thing about the E5 is that it can still operate when the head is open, like when you’re swapping the AAA cell. This brings up some interesting user scenarios, which I’ll cover below.
When installing the AAA cell, you’ll put it into the E3 with the positive end (button) upward. When swinging the head back onto the body, you’ll need to press the cell down against a spring. This is easy, but you’ll want to pay attention so you don’t wear the seals when bumping them against the AAA button.
It seems like the AAA cell starts off with low output, and then around 70 minutes, the light switches to the internal LiPO. I don’t really have a way to confirm this, but I can say that the LiPO is depleted at the end of this runtime.
Charging
USB-C charging is available on the E4Ti. This charging port is on the side of the light, and near the switches. This location is a departure from similar lights like the E3. The cover presses in and says in place fairly well.
Not just all those good factors mentioned above, but this charging works with USB-C to USB-C, too! Here are a couple of charging graphs.
C to C charging works just fine! I wasn’t able to log a C to C graph, but it looks just like this E5 graph.
Unfortunately, the onboard charging is only for the internal LiPO battery. You won’t be able to charge an AAA cell with USB-C charging.
Modes and Currents
The RovyVon Angel Eyes E4Ti flashlight page or manual does not list specs, so these are from the E7 GITD page. They should be the same, though.
LiPO:
| Mode | Mode Claimed Output (lm) | Claimed Runtime | Measured Lumens |
|---|---|---|---|
| High | 500 | 3m+1h | 372 |
| Medium | 70 | 2h | 66 |
| Low | 10 | 14h | 7.5 |
| Moonlight | 0.5 | 62h | 0.26 |
AAA:
| Mode | Mode Claimed Output (lm) | Claimed Runtime | Measured Lumens |
|---|---|---|---|
| High | 70 | – | 58 |
| Medium | 15 | – | 11 |
| Low | 5 | – | 3.5 |
| Moonlight | 0.5 | – | 0.23 |
Pulse Width Modulation
The mode order here is four white front modes, lowest to highest. The top row is with the LiPO and the bottom is with an AAA. This mode order is used throughout, below.
Here you can see a “baseline” – a chart with almost no light hitting the sensor.
Then there’s the Ultrafire WF-602C flashlight, which has some of the worst PWM I’ve seen. It’s so bad that I used a post about it to explain PWM! Here are multiple timescales (10ms, 5ms, 2ms, 1ms, 0.5ms, 0.2ms) to make comparing this “worst” PWM light to the test light easier. That post also explains why I didn’t test the WF-602C at the usual 50us scale.
User Interface and Operation
The switches on this RovyVon Angel Eyes E4Ti flashlight are metal cover e-switches. They are very much in design like the Aurora A24Ti (for example, but there are others.)
A bezel around the switch protects it reasonably well from accidental activation.
It’s a very quiet clicky button.
Here’s a user interface table! The user interface isn’t really too much different from what you’ve seen on the other Angel Eye lights, but this one has two switches. The switches don’t mix – the more “front” switch is for the front emitters only. The rear switch is for the side emitters only.
| State | Action | Result |
|---|---|---|
| Off | Click Front Switch | Moonlight (and brief battery check display on LiPO/AAA LED) |
| Off | Double Click Front Switch | Memorized mode (from Low, Medium, or High) (and brief battery check display on LiPO/AAA LED) |
| Moonlight | Click Front Switch | Off |
| Moonlight | Triple Click Front Switch | Iterate battery selection (pick between AAA or LiPO option) (or three blinks from LiPO LED to indicate “switch failed” (maybe AAA is not installed or depleted) |
| Off | Triple Click Front Switch | Lockout (LiPO LED blinks 3x rapidly to indicate lockout) |
| Lockout | Click Front Switch | LiPO LED blinks 3x rapidly to indicate lockout |
| Lockout | Triple Click Front Switch | Unlock (AAA LED blinks 2x rapidly to indicate unlock) |
| On (except Moonlight) | Click Front Switch | Mode advance (L, M, H) |
| On (except Moonlight) | Hold 0.5s Front Switch | Off |
| Off | Click Rear Switch | Brief battery check display on LiPO/AAA LED |
| Off | Hold Rear Switch | Momentary High |
| Off | Double Click Rear Switch | Strobe |
| On | Hold Rear Switch | Off |
LED and Beam
RovyVon states that this warm white version uses two Luminus SST-20 emitters in Warm White (4000K) and High CRI (95). For the record, the cool white is also a Luminus SST-20, but in 6500K CCT.
On the versions that have two of the same emitters (cool white x2 or warm white x2), the emitters can’t operate independently. However, on the versions that have mixed options (which is a different line of the Angel Eyes) (cool and warm white, or cool white and red), the emitters can be operated independently.
LED Color Report (CRI and CCT)
The claim made about these Luminus SST-20 emitters is that they’re 4000K and 95 CRI. What we actually get is something a bit warmer, in the 3800-3900K range. This pleases me greatly! But it might not please you, so be aware. Also, the claim is 95 CRI and across the board, the CRI is higher, at 97-98. All very good things! In almost all tests, the dUV is very slightly below the BBL, too. It’s minimal, and you will probably not notice it, but you should be able to note that there’s no green at all. That alone is very good! One more point is that both CRI and CCT hold up no matter which battery you’re using. And they’re both consistent across all the modes – so this is one very consistent output light!! I did also test the UV and side white emitters here.
Beamshots
These beamshots always have the following settings: f8, ISO100, 0.3s shutter, and manual 5000K exposure. These photos are taken at floor level, and the beam hits the ceiling around 9 feet away.
Tint vs BLF-348 (KillzoneFlashlights.com 219b version) (affiliate link)
I keep the test flashlight on the left and the BLF-348 reference flashlight on the right.
I compare everything to the KillzoneFlashlights.com 219b BLF-348 because it’s inexpensive and has the best tint!
Conclusion
What I like
- Unique LiPO/AAA mix
- LiPO can still power the light when AAA is being swapped – continuous usage!
- Possible to select between battery options (even with AAA installed) (this allows access to the 400 lumens high even if AAA is installed)
- Warm white emitter options
- Titanium body!
- Tritium slots are a great bonus
- Great build quality
- USB-C charging
- Luminus SST-20 is a great emitter choice!
- Indicator LEDs are quite useful
- C to C charging works!
- Glow gasket between head and body
- 10440 support
What I don’t like
- LiPO can’t be changed by the user
- Latch can be a bit hard to lift (but at least it seems secure)
- If the latch gets damaged, then the seal between head and body will be questionable (at best)
- USB-C charging doesn’t charge the AAA cell
Notes
- This content originally appeared at zeroair.org. Please visit there for the best experience!
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