We know, there’s no such thing as a stupid question. But there are some questions you might not want to ask your local shop or riding buddies. AASQ is our weekly series where we get to the bottom of your questions – serious or otherwise. Hit the link at the bottom of the post to submit your own question!

We’re back with another installment from Niterider. Winter might be winding down in some of the northern hemisphere, but there’s always room for lights. Whether that’s for commuting, late night mountain bike rides, or just daylight visibility, lights are important and we’re hoping to clear up a few more of your questions from Niterider.

AASQ #29: Ask Niterider Anything Pt. 2 integrating sphere lumen lux

Why do you measure in Lumens as opposed to Lux? – Jeff

Niterider: In 2011, the US Federal Trade Commission made it a requirement to measure LEDs in lumens. Being that it is more of a measurement that indicates the amount of light brightness emitted. Lumens are the total power of luminous flux, lux is the power of emitted Luminous Flux- A flux of 1000 lumens, concentrated in 1 square meter = 1000 lux, but a 1000 lumen spread from over 10 square meters = 100 Lux.

helmet mount vs bar mount night riding lights mtb

I wanted to get back to riding in the dark but don’t know how many lumens are enough on the trail. My only reference is your lights from the mid 90’s. How many lumens were those? – John

Niterider: Our incandescent bulbs are 12w 250 lumens / 20w 400 lumens which equals 650 Lumens on Full. For cruising trails at night, at the very least, NiteRider recommends using a helmet mounted light that outputs a minimum of 750 lumens. If you’re moving at a higher rate of speed you might experience out running your light. If this is your type of riding style, NiteRider Pro Series Lighting Systems offer up to 3600 lumens! Most trail riders prefer using both handlebar and helmet mounting applications. Helmet mounting your light will allow you to see further through your turn, lighting up where you look.

daytime cycling light

How many lumens should a rear have for daytime use and what kind of blinking pattern is best for daytime visibility? – John

Niterider: The brighter the better when it comes to daytime visibility. Any varying flash pattern is good for increased visibility. NiteRider Daylight Visible Tail Lights are equipped with two varying flash mode patterns. The “best” flash pattern will vary based on your surrounding environment. In high / busy traffic areas the fast flash is recommended. The strobe sequence, surge and peak output, follow by a break, repeat – will help increase visibility of a cyclist in traffic. Choose the best pattern that will differentiate you from surrounding vehicles. For evening tail light applications, steady or the pulse (fade in/out) flash mode is recommended to keep the driver from fixating.

Why are blinky lights vilified?  Specifically, front white lights placed on the blink mode. There seems to be a lot of hate about that.  – Peter

Niterider: Often times, cyclists tend to install their front blinking lights pointing directly at oncoming traffic. NiteRider does not recommend that because it may disorient and/or annoy oncoming traffic. This may be avoided with a proper head light install angle.

For a proper head light angle installation, experiment. Mount your lights and stand back, putting yourself in the same position as a motorist / pedestrian / other cyclists and see what your lights look like.

Angles will change when you go from daytime riding to night. It comes down to wanting to be visible, being able to see where you’re going, while taking into consideration your light beam angle to oncoming traffic.

AASQ #29: Ask Niterider Anything Pt. 2 lumina pro

How does the beam of a pro or enduro series light compare to a Lumina? In other words is it wider angle, made to cover more of the ground right in front of you with more light or anything else that sets them apart in how the light is cast? – Jeff

Niterider: The Pro systems offer a wider beam pattern at 13 degrees and the Luminas at 12 degrees. On top of that, the 1800 and 3600 Pro systems feature Triple Reflectors (see picture for comparison). One Triple Reflector for the Pro 1800 Race and a Dual- Triple Reflector for the Pro 3600 Enduro.

How does the Boost Setting work? – Tim

Niterider: Boost is a way of squeezing out the maximum light output when total lumens are more important than run time. Since it’s reserved for special occasions, there is a dedicated way to access the setting so you don’t have to cycle through it when it isn’t needed. Double tapping the power button from any mode will “Boost” the lamp to maximum/full power. To return to your previous mode (this includes flash modes as well), simply tap the power button once. If the lamp is turned on, going straight into “Boost” from being “Off”; The lamp by default will return to the “Low” setting with a single tap of the power button.

AASQ #29: Ask Niterider Anything Pt. 2 K-edge gopro mount

AASQ #29: Ask Niterider Anything Pt. 2 K-edge gopro mount

What can I do to make my handlebar strap mount not slip? Have you ever considered other mounts? Any chance you would ever design a linking system between lights (Bluetooth or something) that dims/brightens both bar and helmet lights when you push just one light’s button? – Seth

Niterider: We’re actually currently working on revising the Lumina Handlebar mount. K-Edge also manufactures different mounts as well for the Lumina Series like their Niterider to GoPro mount which allows you to mount the light to, well, any GoPro mount. The top cap mount you mentioned is currently available from third party manufacturers in forms like the Paul Stem Cap Light Mount which allows you to use the standard strap, or in versions like the K-Edge Go Big GoPro mount which would then be used with the Niterider to GoPro mount mentioned above. No development for Bluetooth pairing at this time.

What causes tail lights to eject from their mounts? Is there anything that can be done to prevent that from happening?

Niterider: In most situations the ejection occurs when the light is not properly secured to the mount. When properly secured there are very few issues. With that said, if you’re ever having problems with a Niterider product, give our customer service department a ring, and we’ll make it right. – NiteRider Customer Support, Mon-Fri, 8am-4:30pm PST  Tel: 1.800.466.8366,  Intl: +1.858.268.9316

Is there any industry standard test for battery performance in cold weather? – Paul

Niterider: The chemistry of a battery determines its performance in cold weather, but all batteries are less effective the colder they get. Manufacturers test their batteries for performance in all conditions. This information can be obtained in a data sheet provided by the battery manufacturer.

Does Niterider offer a recycling program for old light batteries and parts? 

Niterider: We do not have a recycling program in-house. We suggest visiting your local E-Waste Recycling Facility to dispose of your old/used electronics properly.


Got a question of your own?  Click here to use the AASQ form, or find the link under the Contact menu header up top anytime a question pops into your mind! 


  1. Eli on

    Am I the only person who dislikes the “brighter the better” mantra? Why can’t beam pattern be more important?

      • Robin on

        They’re both only equally important in that a rider wants sufficient light to fall where she or he is looking. Luminous flux (lumens) doesn’t tell us that. Illuminance (lux) does.

    • Robin on

      Unfortunately, bike light manufacturers don’t give us any information at all to compare quality of beam patterns. They do not publish beam metrics like illuminance (lux) at different points in the beam pattern or better yet graphs of lux at a given distance.

      FWIW Road dot cc, a British online mag, does do these tests and does publish plots of illuminance as a function of position in the beam pattern. You’d think if a e-magazine could do it that light manufacturers would do it. They certainly have the money to. Perhaps big lux numbers don’t sell as well as big lumen values.

    • Matt on

      Beam pattern and, arguably more importantly, runtime. I mean, and hour and a half run time from brand new? And then a five hour recharge time? Seriously? At least if they had industry standard, replaceable batteries I could swap in a fresh set and be going again.

      • Not_a_Luddite on

        Typically, recharge times are so long due to the way Lithium ion batteries need to be charged. Lithium batteries need to be taper charged at the end of their charge cycle, you can usually get 90% of capacity rather quickly, but that last 10% has to happen slowly or else you risk damaging the battery, or worse. Also, since USB is used for most chargers, you’re limited to 5W (5V @1A) so if you have a 15Wh battery, you have a minimum of three hours charge, not including taper time. Even if you have the 10W charger you still have 1.5 hrs of charge time. If you’d prefer, the light manufacturers could all come out with proprietary chargers that would decrease charge time.
        There are a few brands that allow you to swap out the 18650 cell (Lynze comes to mind) but you still need the light’s battery management system to apply the correct voltage/current to charge the battery. Unless you’d like the manufacturers to all come out with proprietary chargers…

      • It depends on what you need on

        1.5 hour run time is perfect for a typical commute, and you can fully recharge it from the USB port on your desk. All depends on what somebody is using it for.

  2. Aaron Humphrey on

    Jeff asked a valid question but got a Microsoft Answer: correct but useless. Robin is also correct. Candela per square meter is Lux, in the same manner as Candela per Square Foot is a Footcandle. As there are 10.76 square feet in a square meter, you can say there are approximately 11 footcandles per Lux. The issue is that you cannot say how many Lux or FC are on a surface without knowing center beam candlepower- the amount of light projected in a direction. Then, you can use the Inverse Square Law to calculate the amount of light incident on a surface at a given distance, and you can Cosine Correct for non-nadir incidences. So, raw lumens do not necessarily tell you how the luminaire functions. The beam angle and candlepower will tell you that. A wide flood distribution and a spot distribution may use the same raw lumens at different angles, but will show different amounts of luminous flux and distribution over a given surface area. Think of it this way: if I have a gallon of water, how deep is it? In a trough it’s shallow and wide, but in a vase it’s deep and narrow. The problem with every single light for cycling is that only raw lumens are published. Beam angles and candela values are not, nor are maintained lumens. Lumen mantainence versus heat at output levels are never published. These values are critical for understanding what the luminaire produces, but as a whole, the industry fails in providing them. There are standard testing and reporting procedures used throughout the lighting industry but cycling lighting has ignored these methods in the quest for being able to publish lumen values with no true usefulness.

  3. drew devereux on

    Cars have high and low beams. Bike lights are almost all only high beams that blind and dazzle oncoming traffic. It would be nice if some bike light company took this problem seriously. What is your take on this issue Niterider?

    • Rider X on

      For what it is worth the top end Specialized Flux Expert light has a low and high beam similar to a car. Its a triple light, with the two outer lights having a horizontal cut-off like a car low beam. The center beam can be turned off and on with a handle bar remote and acts alike a high beam.

    • Eli on

      This is why I like Light and Motion’s Seca and Taz line of lights. Seca more as not having the battery in the light head makes the light head much lighter. Don’t care about the weight directly but a lighter light head is easier to be more stable on the handlebars. Hitting a pothole at speed on a road bike is bad enough, losing your light too as it readjusted itself really sucks


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