I previously used to diffuse by pointing light to roof and spreading the light from that reflection,. I thought it would have higher intensity if i place a diffuser instead of of reflection from room. After using the diffuser i didn't find any changes in intensity. Also after placing the diffuser since the light isn't from top , it is hard to look into some places due to light directly hitting eyes. And some place even darker. I didn't find it worth for the money. Just place the flashlight upright and use the reflection from top. It's the best strategy.

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The diffuser is well made, sturdy, and has the potential to be a great diffuser. However, it is not the right fit for the PD40R V2 flashlight that I purchased it for. In the absence of a suitable diffuser, this is the closest available from Fenix that fits the flashlight, I was advised.