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ASP Poly DF 420lm review: Pros and Cons

Cree XP-G2 LED
420 lm output
10000 cd intensity
1 x 18650 Li-Ion battery

The ASP Poly DF (POLYDF) released in 2019. It uses Cree XP-G2 LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 420 lm output, 10000 cd intensity, and a beam distance of 200 m.

The content of this article reflects our own experiences and viewpoints. We aim to offer insights on a topic, and we hope others find it helpful and motivating. Additionally, we make every effort to provide accurate and comprehensive coverage. If you found an error or something lacking in the specifications for the ASP Poly DF, then tell us.

ASP Poly DF / POLYDF

The Poly DF flashlight is an essential tools for emergency preparedness. In disasters or blackouts, when electricity is unavailable, a flashlight is crucial. It helps you navigate dark areas. This light has 2 modes of lighting. Without mode memory, each time you turn on the Poly DF, it will start from the default or first mode in the sequence. The flashlight uses rechargeable batteries. You can recharge them with a USB cable connected to a power source.

ASP Poly DF (POLYDF) specifications

BrandASP
NamePoly DF
TypePOLYDF
Rating
Rated 4 / 5 based on 1372 user votes.
Launch2019
Formflashlight

This ASP flashlight offers portability, versatility, and reliability in providing illumination.

ASP Poly DF / 2

Body

Weight105 g
Length171.5 mm
Head diameter35.6 mm
Materialaluminium alloy with HAIII hard-anodized finish
Colorsblack

The flashlight weighs 105 g. It is generally comfortable to hold for a long time, and it is also easy to carry in pockets or bags. A balanced flashlight has even weight. It can be more comfortable to hold for longer and reduce hand fatigue. Aluminium is a lightweight material, which is beneficial for Poly DF flashlight. The HAIII process makes a hard and wear-resistant surface on the aluminum. This makes it more resistant to scratches, abrasions, and impacts. This flashlight comes in a sleek black color option.

ASP Poly DF / 1

System

EmitterCree XP-G2 LED
Color temperature6500 K
ReflectorSMO
Lenstoughtened AR coated glass
Switchmechanical rear

Lighting professionals trust Cree LEDs. Cree LEDs have gained a strong reputation for quality and performance. The color temperature choice depends on the light's use and personal taste. The Poly DF uses a smooth reflector. A smooth reflector is different from an orange peel reflector. It has a polished, mirror-like surface. The AR coating of the lens helps to reduce these reflections. It does this by changing the lens surface's refractive index.

Mechanical switches often offer tactile feedback. Users can feel a distinct click or resistance when they press the switch. The rear switch allows for quick and easy momentary or constant-on activation. It enables rapid response and tactical moves.

ASP Poly DF / 3

Performance

Flux420 lm
Intensity10000 cd
Throw200 m
CD/LM factor23.81

You mainly need a flashlight for basic tasks like finding keys or navigating in dimly lit areas. 420 lm can be enough. It can also be enough for occasional use around the house. The Poly DF flashlight has 10000 cd. It provides a much brighter and more intense beam. The throw distance is the farthest distance the flashlight can light an object. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam.

Software

Modes2 modes
Mode memoryno
Ramping modeno
Strobeno
SOS/Beaconno

A flashlight's modes are different output settings or brightness levels. They can be chosen to meet different needs and preferences.

Features

Battery1 x 18650 Li-Ion battery
Battery indicatoryes
Charger portmicroUSB
LVPno
Thermal regulationno
ProtectionIPx8
Impact resistance2 m
AUX LEDsno
Magneticno

The Poly DF flashlight utilizes 1 x 18650 Li-Ion battery as its power source. A battery indicator lets users see the battery status. It helps them decide when to recharge or replace the battery. A flashlight's USB charger can be very useful. This is especially true in emergencies. In such situations, access to power outlets may be limited. The Poly DF flashlight lacks built-in LVP. You should use a protected battery to prevent over-discharging.

This flashlight doesn't have built-in temperature control. The flashlight has an IPx8 rating. It can withstand being submerged in water beyond 1 meter for a prolonged period. The manufacturer specifies this. This flashlight has an impressive impact resistance rating of 2 m. It is built to endure accidental drops or impacts.

Accessories

Package contents18650 battery
clip
microUSB cable

The included battery is picked by the manufacturer. It is picked for the best compatibility and performance with the Poly DF flashlight. The clip allows you to attach this flashlight to a belt, pocket, backpack, or other items. This enables convenient hands-free carry.

According to the ANSI/NEMA FL1 Standard, we measure the performance of the ASP Poly DF flashlight 30 seconds after switching on the light. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

ASP Poly DF pros and cons

This ASP flashlight, like any other, has its strengths and weaknesses. Let's take a close look at both sides to understand this flashlight better. I share my thoughts on its standout features and the parts that might need improvement. Keep in mind, these are just my opinions, and you might have a different perspective.

Pros

  • lightweight
  • aluminium body
  • AR coated lens
  • tactical switch
  • multiple modes
  • battery indicator
  • USB charger
  • waterproof
  • battery included
  • clip

Cons

  • cool light
  • moderated performance
  • no mode memory
  • no LVP
  • no thermal regulation
  • no auxiliary LEDs
  • non-magnetic

ASP Poly DF (POLYDF) pictures

ASP Poly DF / POLYDF photo 1.
ASP Poly DF / POLYDF photo 2.
ASP Poly DF / POLYDF photo 3.
ASP Poly DF / POLYDF photo 4.
ASP Poly DF / POLYDF

If there’s information about the ASP Poly DF that you would like to see on this site, then write to us.

David Hagon
I love bushcraft and flashlights. I find joy in mastering wilderness survival skills and exploring the realm of illuminating gadgets. Bushcraft isn't just fun, it's a learning journey. I form a strong bond with nature. It's more than a hobby, it enriches me in practical and spiritual ways.
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