Dereelight CL1H

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Dereelight CL1H is a highly modular LED flashlight. Dereelight CL1H accepts multiple types of Batteries ranging from single rechargeable Li-Ion 18560 battery to two CR123 batteries. CL1H is machined from aircraft grade aluminium with natural hard anodize type 3 coating offering good environmental protection, corrosion resistance and durability. There are multiple O-Ring Seals at various locations in CL1H for water resistance. Dereelight CL1H has a forward clicking tactical switch. Dereelight CL1H accepts multiple type of power LED modules. One of the LED modules supplied with Dereelight CL1H has 5 mode Microcontroller (µC) Controlled drive circuit, with three brightness levels, strobe & SOS mode and LOP Metal Reflector.
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Light Features:

• Highly Modular
• Easy LED upgrading
• 5 mode Microcontroller (µC) Controlled drive circuit with memory
• Cree XR-E LED
• AR Coated glass lens
• Supports multiple battery types
• Forward Clicking Tactical Switch

Light Operation: Simple, tactical click switch. To change modes, press and release the tail cap half way before you hear the click sound in quick succession. When desired mode has arrived press the tail cap fully until you hear the click sound.

Below is the chart showing total output levels for Li-Ion 17670 battery

Level	1 AW 17670 Rechargeable Battery
Low	303
Med	878
High	1500

General Info
ID	26
Light Model	CL1H
Manufacturer	Dereelight
Review Page & Image	CL1H
Country	China
Review Date	2007-10-26
Review Update	2007-10-29
Light Vitals
Length	145 mm
Width / Bezel Diameter	34 mm
Width / Tube Diameter	25 mm
Height (if applicable)	mm
Weight (without battery)	122 gm
Light Source
LED Format	Power LED
Number of LEDs	1
LED Name	Cree XR - E
LED Power	3  Watts
Light Management
Lens Material	Glass
Lens Coating (if any)	AR Coated
Lens Transperency (typical)	90
Lumen Management	Reflector
Material	Aluminium Metal LOP
Beam Type	Mostly Throw with good side spill
Power Management
Converter Type	Buck
Properties	Regulated, Micro Controller (uC)
Features	Advanced User Interface
Batteries Supported, Output & Runtime
Battery Size     Chemistry     Nominal Voltage     # Used     Total Output     Runtime to 75%     Runtime to 50%     Runtime to 25%	17670 Li-Ion   3.7 1 1500 109 110 111
Switch Options
Switch Type     Switch Properties	Click Tactical
Body Material Options
Material     Properties     Color	Aluminium Type III Hard Anodized Natural
Light Rating
Looks	65
Build Quality	70
Runtime	80
Output	90
Features	70
Usability	75
Bang for buck	65
Overall Rating	73.571

Size Comparison: Pictured below From L to R: CPF Special 16 Mode VB 16, Dereelight CL1H.


Another size comparison From L to R: AW 17670 Rechargeable Battery Dereelight CL1H, Single AA battery.


Bezel: Reflector in Dereelight CL1H is built from solid Aluminium. The reflector has Light Orange Peel (LOP) Finish. Cree XR-E LED is perfectly aligned and centered within reflector. The depth of reflector is medium offering optimum combination of throw and side spill.


Reflector Comparison: On the left you can see a smooth reflector inside CPF Special VB 16 and on the right is the LOP reflector in CL1H. The main advantage of LOP reflector is that it offers a fairly good beam with no artifacts in comparison the smooth reflector has ringy artifacts.


Components of highly modular bezel of Dereelight CL1H. Showing Bezel housing AR Coated Glass, in the middle is the light module. The reflector in light module is changeable and so is the LED itself. This makes Dereelight CL1H one of the most modder friendly and easy to upgrade light. Following images show the dissembled head in different directions.






Body: Dereelight CL1H is machined from Aircraft Grade Aluminium. The Machining is good without flaws. There is a removable clip attachment at the tail end of the flashlight. The body of Dereelight CL1H mainly consists of 3 main modules; bezel housing lens and light module, battery tube and tail cap. The head has machined grooves which protect light from rolling when kept on plane surface. One more factor that effectively prevents rolling is the clip attachment as seen from the picture below. The battery tube has attractive diamond-shaped knurling offering good grip.


Picture showing other side of body having flat surface with laser engraved light logo and model. You might have noticed slight color mismatch but this is what gives a unique identity to each flashlight.


The tail cap which houses tactical click switch has glow in the dark rubber cover enabling CL1H easy to find in the dark. The knurling on tail cap provides additional grip.


Disassembled body of Dereelight CL1H showing battery tube and tail cap. there are translucent color silicone based O-Rings on both sides of the battery tube located just before the thread start.


Inside the tail cap you will see removable steel screw over brass contact.


The battery tube and other components have thick body walls indicating strong body construction.

Beam Shots Dereelight CL1H: Beam with very good hotspot providing excellent throw with having good side spill. The beam shots below are taken with exposure compensation 0 to -2 on the left is CPF Special VB 16 and on right is Dereelight CL1H.

Exposure Compensation: +0 showing side spill and the hot spot. You can see spill rings in VB 16 where as the side spill of CL1H is perfectly smooth.


Exposure Compensation: -1 showing main hotspot, there is distinct separation between hotspot and side spill. The side spill is smooth and even.


Exposure Compensation: -2 showing main hotspot of Dereelight CL1H is very bright in fact it is one of the brightest lights reviewed till date. CL1H has very good throw.

Here are a few extreme closeup shots. You will notice that there are no machining flaws. The workmanship of CL1H is very good.


Battery tube.


Tail end of battery tube, the diamond shaped knurling has some wavy bands.


Tail end.

The runtime for Dereelight CL1H little under 2 Hours 1 Hour 48 Minutes to be exact, this is exceptionally high considering the total light output of the light. Moreover the regulation is excellent. Runtime test for CL1H was carried out with AW 17670 Li-Ion rechargeable battery of about 1600 mAh capacity.