The Energizer Flex-R is a high-utility reading light that focuses on eye health and portability. It uses warm LED technology (approx. 3000K), which provides a stable light that helps reduce strain during late-night reading. By using a rechargeable lithium-ion battery, this model avoids the common issue of battery terminal corrosion found in older, disposable-battery lights, making it a more reliable choice for long-term use.
The light is built with an ABS plastic housing and a flexible neck reinforced with an internal steel wire. This construction is designed for thousands of flex cycles and allows you to point the light exactly where it is needed. The clip features a high-tension torsion spring that opens to 1.25 inches, which is sufficient for most hardcovers and e-reader cases. The light also includes a proprietary lens diffuser to help monitor glare and eliminate bright spots on the page.
The warm light mode is specifically designed to help with pre-sleep hygiene by reducing blue light exposure before bed.
For those using very thin "onion-skin" paper, like that found in some religious texts, the strong clip tension might be mitigated by placing a small piece of felt under the clip. While the internal battery is efficient and supports modern charging via USB, it is a sealed unit; once the battery eventually reaches the end of its life in several years, the entire unit will need to be replaced. Minor friction noise may occur in the clip hinge after heavy use, which is a normal characteristic of the polymer material.
If you need a light with a much wider head for larger format books or music scores, the Moonbeam 10-LED light is a good alternative.
Find more tools to brighten your reading space by visiting the clip-on reading lights category.
