I received the light from GearBest.com for the review.
Simple cardboard box for the IYP365
Inside the box: light and a couple of spare o-rings.
Lumintop’s specs for the light:
1) Utilizes High CRI Nichia 219BT LED or CREE XP-G2 (R5) LED with 50,000-hour lifetime
2) Output mode/Runtime:
CREE-Type: High: 200 lumens/35Minutes, Mid(Default): 40 lumens/25hours, Low: 3 Lumens/50 hours
NICHIA-Type: High: 125 lumens/35Minutes, Mid(Default): 25 lumens/25 hours, Low: 1.5 Lumens/50 hours
3) 3 modes: Mid-Low-High; Two ways to change modes: press the clicky switch or tighten/loose the head
4) Runs on: 2 x AAA (NOT included) (10440 Not Recommend)
5) Dimensions: Length: 5.04" (128mm); Head Diameter: 0.57" (14.5mm); Body Diameter: 0.49"(12.5mm); Weight: 0.81oz(23g) (excluding battery)
6) Max Beam Intensity and Distance
CREE-Type: 900cd, 60meters
NICHIA-Type: 506cd, 45meters
7) High-efficiency digitally regulated circuit to maintain a constant brightness as battery life diminishes
8) Glow in the Dark front O-ring around reflector
9) Precision micro-textured reflector creates smooth, optimized beam
10) Double-side AR coated, tempered window resists impact and thermal shock, maximizes light transmission (99% light transmittance)
11) Multi-Function, clicky tail switch provides one-handed operation and easy access to all functions
12) High quality stainless steel clip makes it durable and keeps a firm grip on your pocket
13) Capable of standing up securely on a flat surface to serve as a candle
14) Impact resistance to 1.5 meters and waterproof in accordance with IPX-8 (submersible to 2 meters)
15) Market applications include, but are not limited to everyday carry, keychain, gift, emergency, security, hardware/tool and many other uses
16) Operation: Click the tail switch to turn on/off; when the light is on, press the switch to select brightness (Mid-Low-High); or tighten/loose the head to change modes
As you red, there are 2 version of the IYP365, one features a cool white XP-G2 emitter, and the other has a Warm Nichi 219 hicri. Obviously, I got the second one.
Well made and lubed threads. They are anodized, so you can physically lockout the light.
A very wide metallic clicky switch at the tailcap. It is stable enough to make the IYP tailstand. There is some geometrical pattern on the tailcap. The clip does rotate. The tailcap can also be unscrewed and the clip removed.
Here’s some comparative pics, featuring 2 other penlight: a 47 Open and 47 Preon II Limited edition warm.
The preon and the IYP have a thin body and a slightly bigger head
Also the switches are very different.
The IYP has a GITD ring under the glass.
You can control the light as a clicky or a twisty.
Click (or twist) to turn the light on, click (or untwist) to turn the light off.
When the light is on, make a half press (or untwist and twist quickly) to change brightness (medium, low, high, medium… in loop).
The light has not memory mode. It always turns on at mid mode.
Output and runtime
Output and runtime have been tested using AmazonBasic AAA Nimh 800mAh.
The output at the high mode is consistent with the specs, at mid mode not.
Runtime at high mode does exceed the specification.
Beamshots at 0.5 meters from the wall
This is the warmest nichia 219 emitter I have seen on a light. I red somewhere 4000k, I believe is a bit lower. Lovely tint, and high CRI.
The light is well built.
The UI is similar to the one of the other penlights, but the IYP doesn’t have memory and always starts on medium mode.
The beam profile is similar to the one of the other penlights, a wide beam with wide spot, suitable for short distances.
Having a CW / WW HICRI choice is always nice. The regulation is excellent at the tested level.
The IYP has a rather low streets price and I believe I recall seeing groupbuys with even lower price.
If you can dig the UI, I can’t find a big flaw on this light.
That’s another light I will use when wearing a suit.
Thanks to AntoLed for lending me the camera and the luxmeter.