During your stargazing sessions, one almost indispensable accessory I recommend is a red flashlight or a red light headlamp. They are relatively cheap and some are even bundled together with some telescopes.
A flashlight with red light is recommended for astronomy because the eye’s rod cells are affected less by red light then by blue light. When you go from bright light to dark, your eye will do two things. First, your pupils will dilate to let in more light. In daylight, the pupil may open anywhere between 1 to 2 millimeters. However in darkness that can jump anywhere from 5 to 7 mm. The second thing it does it produce more rhodopsin from the eye’s rod cells which increases sensitivity to light. Thus it can take up to 30 minutes for the eyes to fully adapt again to a darker environment and see more details.
Celestron 93588 Astro Night Vision Flashlight
$15.49 in stock
4 used from $13.87
- Keep your night vision intact by using a red flashlight when observing!
- The Night Vision Flashlight uses two red LED’s for even illumination
- An easy-to-use thumbwheel adjusts the brightness
- Square shape keeps the Night Vision Flashlight from rolling away
- Powered by an included 9V battery
Orion 5768 RedBeam Mini LED Flashlight
$11.99 in stock
- Read star charts, look inside your accessory case, or find your way around the telescope in the dark with the RedBeam Mini LED flashlight
- Very compact size - doesn't take up much room in your accessory case, and can easily fit in a pocket
- Will not harm your night vision like a white flashlight can
- Aluminum housing with rubber ON/OFF switch
- Comes with batteries, and a handy key ring always keeps it close
4 Red Flashlights LED for Astronomy and Night Observations
- Package includes: the package includes several red light LED flashlights, and specific quantity for your choice, which are sufficient to meet your needs for daily activities; This red flashlight use 1 AA battery
- Designed for observer: this single mode red light torch is specially designed for observers; Night observation is hard to find the target, and if you use the white light, animals will hide from you, you are not able to watch their natural behavior at night, so this night light flashlight with red light is very helpful to find the animals in the dark, helping you observe turtle, snakes, and the reptiles easily and clearly
- One mode design: our single mode red LED torch has only one switch mode (On/OFF), which is a smart and humanized design; There maybe some trouble for switching between 3 modes or 5 modes to decide which mode to use, so the red light flashlight with only one mode will be very practical and suitable for your effective work
- Functional and practical: scalable red light flashlight has an adjustable focus range for different usages, supports zoom in-out, features more than 150 yards light beam with long range; This flashlight is made of stable aluminum alloy casing, skid-proof and water resistant, with a mini size and steel body clip, convenient to carry and hold
- Multiple applications: this red flashlight is proper for cycling, astronomy, aviation, night observation, hiking, camping and other outdoor activities, also you can apply it indoors when the electric power is blacked out
COSOOS Red Light Flashlight
- 【Red Light Flashlight】Human eyes are sensitive to the white light, your eyes have to adjust to the light to see that it illuminates, but that may kill sight elsewhere. Red light is ideal not just for making your way around if you’re observing at night, but also perfect for any situation where work might be done in extreme dark or underground.
- 【Zoomable & Waterproof】This red flashlight with zoomable design can adjust the field of view. Great for night walking and observation. Weather or water resistant, anti-abrasive, skid proof, compact design makes this tactical flashlights the top pocket size flash lights for outdoor activities.
- 【One Mode Flashlight】1 switch mode(ON/OFF), no need any complicated steps, Install 1*AA battery into the battery holder & insert it towards the arrow direction into torch.
- 【Wide Application】This red light flashlight helps you see in the dark, minimizes you getting noticed from a distance, and allows you to read & work in the dark without ruining your night vision. Red light is also common in camping, hiking, riding, watch animals nature behavior.
- 【Satisfaction Guarantee】You will get 1*red light flashlight(Batteries not Included). If for any reasons you are not happy with your purchased, please contact us for refund or replacement.
METII Upgraded Red Light Flashlight
- White + Red(2) = 3 Modes: White light for everyday illumination, red light for night vision. Bright red light allows for better observation of animals without disturbing them. Weak red light is suitable for reading maps, aiding eyes in adapting to ambient light. Note: Features mode memory, eliminating the need to readjust the lighting mode every time.
- Zoomable & Adjustable: Tailor the light to your needs by adjusting intensity and coverage range through beam divergence or focus. Note: Half-press the switch to quick toggle between lighting modes.
- No Battery Level Worries: Powered by a button-top rechargeable 18650 or 3 AAA batteries (both not included). When short on time for charging, immediately use AAA batteries without waiting.
- Additional Features: Includes a handy pocket clip and lanyard. The ergonomic design, advanced etching, and manufacturing processes result in a compact yet powerful tool with excellent waterproof performance, suitable for use even in rainy conditions.
- After-sales Support: Enjoy peace of mind with our 12-month warranty, providing a comprehensive guarantee for your shopping experience.
4 Pieces Red Light Flashlight Red LED Flashlight
- Package includes: you will get 4 pieces red flashlight, enough quantity for your choice, also sufficient to meet your needs of daily activities; It is convenient to place them in different places, such as in your car or in your home; Each flashlight requires 2 AAA batteries and they are not included in the package
- Designed for observer: this one mode red light torch is specially designed for observers; Observation at night is hard to find the target, and if you use the white light, animals will hide from you, you are not able to watch their natural behavior at night, so this night light flashlight with red light is very helpful to find the animals in the dark, helping you observe turtle, snakes, and the reptiles easily and clearly
- Security protector: the red light flashlight can be applied for sending signal, asking help, warnings, especially suitable for outdoor emergent situation, which will be your nice and warm security protector; With a mini size of 13.3 x 1.5 x 1.6 cm/ 5.23 x 0.6 x 0.63 inch, this astronomy red flashlight will be easier to take out
- One mode design: our red LED torch has only one switch mode (ON/OFF), which is a smart and humanized design; There maybe some trouble for switching between 3 modes or 5 modes to decide which mode to use, especially when you hold many things in hand, so the single mode red LED torch will be very practical and suitable for your effective work
- Multiple applications: this powerful red light has a clip on the body, convenient for you to clip it in belts, pockets, school bags and more to take out, proper for cycling, astronomy, aviation, night observation, hiking, camping, fishing, riding, emergency use and other outdoor activities, also you can apply it when the electric power is blacked out
DARKBEAM Red Light Flashlight
- Using R5 lamp beads, better quality and brightness than XPE lamp beads, brightness up to 500 lumens.
- The 501B-S Red Light Flashlight has the feature of telescopic adjustment focus, it allows to cover a larger area. Lens telescopic, zoom in - spotlight, zoom out - floodlight.
- Equipped with high-quality high-capacity rechargeable battery for 3 hours of sustainable use. The lithium battery can be recharged at least 10,000 times.
- Animal eyes are sensitive to white light, but they are not spooked by a Red LED flashlight, so this red light is very helpful for finding animals in the dark, such as pigs, coyotes, foxes, snakes... Under the red light, you can find them without disturbing them, help you watch their natural behavior at night.
- 【WARRANTY!】We stand strongly behind our product anf your satisfaction. Any question will be solved if you contact DARKBEAM. We provide promptly, satisfying support with 180-Day Money Back & One Year Guarantee.
2 Pcs Powerful Red LED Flashlight
$19.99 in stock
- LONG RANGE HUNTING LIGHT: the red lens flashlight illuminates nicely while preserving excellent night vision.250 Yards bright and focused RED beam helps you find your game in the distance without disturbing the animal.
- ADJUSTABLE FOCUS: the coyote red light is perfect for distant observation and wide range illumination, best for watching the stars,hunting, fishing,camping,etc
- HIGH STANDARD FLASHLIGHTS: this red light with the latest water-resistance and shock resistance technology , which is more durable and practical than other cheap red led flashlight in the market.
- SMART DESIGN: the red light flashlights is small enough to keep in a nightstand drawer, purse or pocket.Only comes with 1 single mode,which is very easy to operate.
- POWER SOURCE: 1pcs 18650 Lithium-ion Battery (Not included) or 3pcs AAA Battery (not included)