March Ultra Low Power 4-Level Illumination Switch

• Ultra-low illumination output: Reduces standard reticle brightness to 1/5, helping illuminated March reticles work more cleanly with night-vision devices mounted behind the eyepiece.
• Four brightness levels: Each press cycles through 4 illumination settings, making it easier to match reticle intensity to ambient light and avoid an over-bright aiming point.
• Night-vision-oriented design: The output is barely visible to the naked eye, which is exactly what makes it useful when a rear-mounted night-vision or thermal device would otherwise exaggerate reticle brightness.
• Automatic shut-off: A 1-hour auto-off function helps prevent unnecessary battery drain if illumination is left on between shooting positions or after a session.
• Broad March compatibility: This switch is compatible with all March scopes except EP-Zoom models, giving owners a simple way to adapt an existing illuminated scope for specialist low-light use.

About the March Accessories Series

March Accessories is the support range built around the company’s riflescopes, with a focus on practical add-ons that adapt a scope to a more specific role rather than changing the core optic itself. The series includes items such as sunshades, honeycomb hoods, MD disks, flip caps, illumination modules, focus wheels, and smartphone adapters, covering everything from glare control to handling and image capture. Across the range, the design approach is straightforward: each accessory addresses a defined field problem and integrates with compatible March models without unnecessary bulk.

Within this family, illumination modules are especially relevant for shooters who use their optics across changing light conditions or with electro-optical equipment. The series includes both a six-level illumination switch and an ultra-low four-level module, allowing the reticle brightness system to be matched to the intended setup. That makes the March Accessories line particularly useful for precision shooting, hunting optics, and specialist night-use configurations where compatibility and control matter as much as the riflescope itself.

About the March Ultra Low Power 4-Level Illumination Switch

The March Ultra Low Power 4-Level Illumination Switch is a specialist accessory for shooters who run a night-vision device behind the eyepiece of a compatible March riflescope. In that setup, a standard illuminated reticle can appear too bright relative to the viewed image, making the aiming point bloom or distract from the target. This module addresses that problem by reducing the standard illumination output to 1/5 brightness, creating a much dimmer reticle that is better suited to low-light electro-optical use.

The practical advantage is not simply that the reticle becomes darker, but that it becomes more usable. Because the illumination is barely visible to the naked eye, it stays restrained when seen through a rear-mounted night-vision or thermal device, helping preserve a cleaner sight picture. The four-level brightness cycle also gives enough adjustment to tune the reticle to conditions without making operation complicated in the field. A 1-hour automatic shut-off further supports real use by reducing unnecessary battery consumption if the illumination is left on during movement, waiting periods, or transport between positions.

As a March riflescope accessory, this module is best suited to shooters building a dedicated low-light or night-use setup and who want to keep their existing optic while tailoring its illuminated reticle behavior to that role. Its compatibility with all March scopes except EP-Zoom models makes it a focused but broadly useful upgrade within the March system.

About March

March is the riflescope brand of DEON Optical Design Corporation, a Japanese company established in 2004 and headquartered in Chino, Nagano Prefecture, Japan. DEON designs and manufactures March custom rifle scopes, and the brand is known for keeping production closely tied to Japanese optical and mechanical manufacturing. March scopes are designed by DEON and assembled in Japan using Japanese-made components, reflecting a strong emphasis on consistency and mechanical precision.

Within the shooting optics market, March is particularly associated with specialist riflescopes for precision, competition, and advanced field use. The lineup includes March-FX, March-X, Genesis, and High Master models, with notable developments such as the introduction of Super ED lenses in 2017. That background is relevant here because March accessories are built around the same system-focused philosophy as the scopes themselves, supporting specific applications without compromising the core optical platform.

Main Features

• Manufacturer: March
• Series: March Accessories
• Model: DA233-UL
• Color: Black
• Compatibility: All March scopes except EP-Zoom models
• Illumination levels: 4
• Brightness reduction: 1/5 of standard illumination brightness
• Automatic shut-off: 1 hour
• Intended use: Night-vision devices mounted behind the eyepiece

Warranty

2 years. This accessory is covered by a 2-year warranty, making it suitable for regular field and range use as part of a March riflescope setup.