If anyone is interested in a slightly more expensive light I have been using one of these for around a year now. It has a one lumen low red light mode with a dedicated red light button (no modes to switch through), USB rechargeable and weighs almost nothing. Its s good general purpose light for other activities such as general camping, fishing etc...Awesome light.
Nitecore NU25.
https://www.amazon.com.au/NITECORE-N...55989214&psc=1