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How to convert Your Chinese lights to use
Marwi Helmet and Handlebar mounts

My Chinese light adapters lets you adapt your Chinese lights to use Marwi Helmet and Handlebar mounts
The adapter you need depends on the body style of the light
The adapters do not go by light models numbers
The same body style light may have many different model numbers depending on who is selling the light
Compare the body styles on this page to know which adapter fits your light body

This page has more info on the Marwi handlebar and Helmet mounts

The Marwi adapters and the Marwi Helmet and Handlebar mounts are located here in my web store


I make adapters for the 3 different body styles shown below

Match up your body style and select the adapter made for that type of body

 Magic shine light
 image BT21 LED Light
MS900 style bodies
MS1600 style bodies
BT21 style bodies
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Marwi Mount Kit
You also need the Marwi mount kit in order to bolt the adapters to the Marwi slide mounts
The kit is a nylon bolt, two nylon nuts and two lock washers

See the links at the top of this page to my Web store where these parts can be purchased

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This section is for the MS900 body style lights
Click on the images for a larger image

image
Magic shine light
The original Magic Shine MS900 light body looks like this

Here is a newer style MS light body.
Notice the reduced size at the back of the light.
My MS900 adapter works on this this body style also

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image MS Adapter
First remove the original mount from the bottom of your light
There is a small screw that you remove and the mount comes right off
There may be a small rubber grommet under the mount
You can snip this grommet off the power cord, it is not needed.

MS900 adapter
You will be replacing the stock mount with these parts
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Click on the images for a larger image
image image
Bend the power cord to the right or left side, your choice.
Push the adapter up against the MS light body.
The wire lays in the half round channel in the adapter
Thread the screw into the body with a metric Allen wrench
See the image on the left
The Marwi slide mount comes with the Marwi Helmet or Handlebar mount.
So you will have to order a Helmet or Handlebar mount
You will also have to order The Marwi Mount kit
The Marwi mount kit is a Nylon bolt, 2 nylon nuts and 2 lock washers.

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- Marwi adapter
It may be hard to see in the images but the light bodies are machined flat where the adapter bolts on

Hold the Marwi slide mount up to the MS adapter so the big holes line up
Slide in the threaded Nylon bolt on the side that has the washer recess area
Slide a lock washer into the recessed area and push the bolt all the way through to the other side.
You may have to tap the bolt with a hammer to get it to slide through the holes
Put one lock washer on the inside and one on the outside of the slide mount
Screw on the two nylon nuts
Starting on the left, the parts go together like this for the MS900 adapter
Nut - Washer - Slide Mount - MS Adapter - Washer - Slide Mount - Nut

Now you can slide your MS light onto your Marwi Helmet or Handlebar mounts
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The section is for the MS1600 body style lights

image
The cord and bolt are reversed compared to the MS900 type lights
The cord exits at the back through a slot in the MS1600 type lights
The Marwi adapter has a slot where the wire can exit

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image Marwi adapter
First remove the original mount from the bottom of your light
There is a small screw that you remove and the mount comes right off
There may be a small rubber grommet under the mount
You can snip this grommet off the power cord, it is not needed.

You will be replacing the stock mount with these parts
-
Click on the images for a larger image
image image
The bottom of the light looks like this with the original mount removed Mount the adapter to the light using the supplied screw.
Thread the screw into the body with a metric Allen wrench
The power cord exits out the rear through the slot.

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Click on the images for a larger image
Marwi adapter image
Attach the slide mount to the light using a Marwi Mount kit

Starting on the left, the parts go together like this
Nut - Washer - Slide Mount - MS Adapter - Washer - Slide Mount - Nut

Now you can slide your MS light onto your Marwi Helmet or Handlebar mounts
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The section is for the BT21 type lights

BT21 Nitefighter
This is the NiteFighter BT21 body

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Marwi adapter
First remove the original mount from the bottom of your light
There is a small screw that you remove and the mount comes right off

You will be replacing the stock mount with these parts
-
Click on the images for a larger image
I found it is easier to assemble the slide mount without
attaching the adapter to the light body
The two washers go on the inside of the slide mount
If the Marwi mount kit bolt does not slide in easily,
tap it lightly with a hammer.
A wood block with a hole works great for this.

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Click on the images for a larger image
It looks like this once the bolt is in place
The two washers go on the inside of the slide mount

Now thread on the nuts
Don't tighten the nuts down yet.

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Click on the images for a larger image
Swivel the adapter so you can get access to the screw head with a wrench
Thread the screw into the body with a metric Allen wrench
Tighten down the screw, but do not over tighten it.

Swivel the light down and then tighten the two nylon nuts
Now you are ready to slide the light onto a
Marwi Helmet or handlebar mount
   
Click on the images for a larger image
Marwi handlebar mount
Marwi handlebar mount
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Click on the images for a larger image
Marwi helmet mount
Marwi helmet mount
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