Flashlight Reviews

JETBeam Jet II Pro IBS

provided for review by
JETBeam Jet II Pro IBS is high output, single CR123 battery based LED flashlight. JETBeam has extended its Professional Infinite Brightness System lineup with the launch of Jet II Pro IBS. Jet II Pro has premium Q5 bin Cree LED. As with other professional series, the body of Jet II Pro IBS is machined from T6016 aircraft grade Aluminium. For environmental protection, Jet II Pro has type 3 military grade hard coat anodizing. The black HAIII coating provides superior corrosion resistance and high durability. The quality of machining for Jet II Pro is flawless. A removable pocket clip comes pre installed on Jet II Pro. Battery tube and other internal parts including threads are treated with corrosion protective chemical. The chemical gives a distinctive golden color finish to flashlight interiors. There are multiple O-Ring seals at various locations in for water resistance. Jet II Pro meets IPX-8 standard for waterproofing. JETBeam Jet II Pro IBS has 3 mode Microcontroller (µC) Controlled, programmable, digitally regulated drive circuit, with three brightness levels. All the three light modes can be programmed to suite the requirements. Reflector is built from solid Aluminium and has Light Orange Peel (LOP) reflective finish. Overall the built quality of Jet II Pro is excellent.

Light Features:
  • Cree 7090 XR-E LED, Q5 Brightness Bin
  • 3 mode, digitally regulated, Microcontroller (µC) Controlled drive circuit with memory
  • T6061 aircraft grade Aluminium body with military grade type III hard anodize coat
  • Sapphire crystal lens
  • CR123 battery based
  • Click tail cap switch
Light Operation & Output:
Light Operation: Click switch used in JETBeam Jet II Pro IBS is "reverse" click type switch i.e. you will hear a click sound before switch makes a contact. To switch on the light simply push the click switch until you hear the click sound. Switch latches the light in ON position. To change modes, after switching on, press and release the tail cap half way before you hear the click sound in quick succession. When desired mode has arrived release the switch. To switch off the light, simply press the tail cap switch until you hear the click sound again.

Below is the chart showing total output levels* for AW RCR123 Li-ion Rechargeable battery

JETBeam Jet II Pro IBS
Level AW RCR123 Li-Ion
High 1824
Low 148

*The total output levels are based on custom built Integrating Sphere with Gossen Mavolux 5032 Class B USB Light Meter as photometer. To convert total output readings in to approximate Lumen readings, simply divide the total output by 10.
Light Info:
General Info
    Light Model Jet II Pro IBS
    Manufacturer JETBeam
    Review Page & Image
 Jet II Pro IBS
Jet II Pro IBS
    Country  China
    Review Date 2008-09-24
    Review Update 2008-09-24
Light Vitals
    Length 99 mm
    Width / Bezel Diameter 29 mm
    Width / Tube Diameter 22 mm
    Height (if applicable)  mm
    Weight (without battery) 51 gm
Light Source
    LED Format Power LED
    Number of LEDs 1
    LED Name Cree XR - E
    LED Power 3  Watts
Light Management
    Lens Material Sapphire Crystal
    Lens Coating (if any) None
    Lens Transperency (typical) 85
    Lumen Management Reflector
    Material Aluminium Metal LOP
    Beam Type Mostly Throw with good side spill
Power Management
    Converter Type Buck Boost
    Properties Regulated, Advanced Micro Controller (uC)
    Features Advanced User Interface
Batteries Supported, Output & Runtime
    Battery Size
    Nominal Voltage
    # Used
    Total Output
    Runtime to 75%
    Runtime to 50%
    Runtime to 25%
Switch Options
    Switch Type
    Switch Properties
Reverse Click
Body Material Options
Type III Hard Anodized
Light Rating
70 70
    Build Quality
70 70
80 80
80 80
60 60
65 65
    Bang for buck
60 60
    Overall Rating
In-Depth Review & Pictures:
Package: JETBeam Jet II Pro IBS comes packaged in hard paper box. The package includes RUIZHI Trading Co. certificate of authenticity and warranty. Each light having unique code and date of manufacture is printed on each card accompanying Jet II Pro. Also included are two spare O-Rings, tail cap rubber cap and lanyard attachment.

Highlighting QC hologram.

Jet II Pro package contents (removable pocket clip not shown and is removed for all review images)

Size Comparison: JETBeam Jet II Pro IBS in center compared with Energizer AA Battery on left and AW RCR123 battery on right.

Another size comparison comparing the Professional Series From L to R: JETBeam Jet III Pro IBS, JETBeam Jet II Pro IBS and JETBeam Jet I Pro.

Reflector: Reflector in JETBeam Jet II Pro IBS is built from solid Aluminium. Cree XR-E LED is perfectly aligned and centered within reflector. Reflector has Light Orange Peel (LOP) finish. Advantage of LOP reflector is that it allows a combination of throw and side spill and there are no artifacts or rings in the beam pattern. The diameter of reflector is about 22mm.

Perfect centered Cree Q5 LED in JETBeam Jet II Pro IBS.

Bezel: Lens protecting reflector is built from artificial Sapphire crystal. There is a red-orange colored thick O-Ring protecting the Sapphire lens; it also prevents water and dirt entering the lens assembly.

Body: JETBeam Jet II Pro IBS is machined from Aircraft Grade T6061 Aluminium Alloy. The Machining work with JETBeam Jet II Pro IBS is near perfect and without any flaws. Here is a picture showing 360 degree view with Jet II Pro IBS standing bezel down.

There are three flat, long rectangular surfaces with circular ends machined on battery tube. On one side "JET-II PRO I.B.S, Professional series 3.7V" with drive circuit specifications is laser engraved identifying the flashlight.

On other side of the flat surface on battery tube Jetbeam logo is laser engraved.

Tail cap is equipped to attached a key ring loop or a lanyard.

You must have noticed this from pictures of bezel and tail cap, that the edges on both ends of JETBeam Jet II Pro IBS are chamfered. This actually is a very nice thing as it helps in reducing effects of erosion of HA III finish on the edges over time. Chamfering also makes the edges soft and prevents accidental injury which is usually associated with sharp edges.

Components: The body of JETBeam Jet II Pro IBS consists of 3 main parts; head housing lens assembly & Light module containing electronics and LED, battery tube and tail cap. The head has machined scalloped grooves that provide good grip. The battery tube as well as the tail cap have attractive diamond-shaped knurling. All threads have square profile. Except for tail cap, threads on other components are not anodized.

Side view of Jet II Pro components.

Head: Head consist of bezel with reflector assembly and light module. If you need to service the head or change any of the head components; Bezel ring, O-Ring, Sapphire Crystal lens and Aluminium reflector can easily be removed from the head of JETBeam Jet II Pro IBS. The JETBeam Jet II Pro is 'semi' open-source kind of light where, should a need arise, all other components can be user serviced except the light engine electronics.

The positive contact of Jet II Pro's head is gold plated spring that ensures good contact between battery's positive terminal and light module electronics. One advantage of positive contact spring is that it allows use of flat top batteries as well as button top.

Battery Tube: The battery tube has thick body walls. Inner side is coated with corrosion resistant chemical coating. Outer side of battery tube has beautiful diamond shaped knurling. Depth of diamond knurling is just right to provide good grip. Removable pocket clip is installed on battery tube. Overall construction of battery tube of JETBeam Jet II Pro IBS is fairly strong with thick body walls. The inner diameter of battery tube is sufficient to accept AW RCR123 Rechargeable Li-ion battery with ease. There is no battery rattle in the tube.

At the bezel end on battery tube, there is a provision to attach pocket clip. The body walls at tail cap end are also thick indicating fairly strong construction.

Thick O-Ring sits behind threads on battery tube tail cap end.

Tail cap: The rubber boot protrudes outside the tail cap boundaries, so it is not possible to make the light stand on the tail for candle mode. The tail cap has a nice band of diamond knurling.

The tail cap houses click switch has 'knurled' black color rubber tail cap boot. The switch is held in place by a metallic retaining ring. Tail cap negative contact spring on JETBeam Jet II Pro IBS appears to be gold plated ensuring a good contact between battery's negative terminal and switch.

There is a provision to attach lanyard or a ring on tail cap. All edges at the tail cap are chamfered and made smooth.

Here is 360 View of Tail cap

Beam Shots:
Beam with excellent hotspot providing combination of throw and side spill. Here Beam shot Matrix shows JETBeam Jet II Pro IBS on Low and High light levels with AW RCR123 Li-Ion rechargeable battery. All beam shots are taken at f/8 aperture with varying shutter speed.
Low High

Extreme Closeup Pictures: JETBeam Jet II Pro IBS
Here are a few extreme closeup shots. The workmanship of JETBeam Jet II Pro IBS is of very high quality.

JETBeam Jet II Pro IBS Head.

Battery tube for JETBeam Jet II Pro IBS has diamond shaped knurling.

Tail cap.

Super Extreme Closeup of bezel on JETBeam Jet II Pro IBS.

Super Extreme Closeup laser engraving on battery tube.

Super Extreme Closeup laser engraving on battery tube.

Super Extreme Closeup of battery tube on JETBeam Jet II Pro IBS.

Super Extreme Closeup of Tail cap on JETBeam Jet II Pro IBS.

Super Extreme Closeup of Tail cap on JETBeam Jet II Pro IBS.

Runtime: in progress

Buy JETBeam Jet II Pro IBS Flashlight at www.JETBeam.com.cn
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