blackburn dayblazer 400 front light

The smallest model in the line is the Blackburn Dayblazer 400. Although runtimes aren’t particularly generous at the lower 200-lumen setting and it’s bijoux enough for clutter-averse bars, the strobing and flashing modes have enough presence and reasonable economy, which might appeal to urban riders. 400 lumens is the top whack. Read this article before purchasing if you’re interested.

Features Of Blackburn Day Blazer 400 Front Light


The Dayblazer 400 employs TIR optics to project a spot and flood beam that can be used for both navigation and visibility. Although it has a composite body and cowling, the construction is reassuringly sturdy, and it complies with IP67 waterproofing standards, meaning it can withstand immersion in one meter of water for 30 minutes.

It suffices to say that it triumphed in my bucket and hosepipe torture tests.

Additionally, it complies with ANSI FL1 standards, which check the validity of claims, including run-times, as well as output. The fact that it passes the 1-meter drop test surprised me.

The 400 is powered by a lithium polymer battery, unlike its larger relatives. Using a remarkably convenient Micro USB cable, this charges in about three hours. Refueling the mains will reduce this time by about 20 minutes.

In either case, the integrated “fuel gauge” battery life indicator will turn green when it’s ready to go.


Buying bikes, parts, accessories, or clothing, quality is without a doubt one of the most crucial factors we take into account. It’s essential when purchasing lights, as you might expect. Let’s look at some of the criteria you can use to judge the quality of the Blackburn Dayblazer 400 Front Light, Black.

The first thing is material. You can get a really good idea of the general level of quality by looking at the materials that Blackburn Dayblazer 400 Front Light, Black is made of.

You should be able to see the material if you look at the specifications above. After that, it will be up to you to decide if it lived up to your expectations.

In a similar vein, you should take some time to review the features. You can get a really good overview from the table listing the features above once more. However, when purchasing new Lights, you should consider the types of features you’d want.

It is worthwhile to make a list of the “must-have” features so that you don’t compromise and leave out some essential features, or alternatively end up purchasing a good product.

Examining the product’s brand and the different brands that sell Lights have a lot of advantages as well. You know you’re getting a great product with them because companies like Blackburn are, of course, highly regarded in the cycling community.

However, you should make a list of brands that you’d be happy to purchase if you’re unsure about your product. When you’re searching, it’s a great way to filter and reduce the number of options.

Mounting System

The Dayblazer 400 Front Light from Blackburn offers a variety of mounting options. A clip that can be used for clothing, bags, or racks is included with the integrated silicone mount, which has a diameter range of 15 to 35 mm.


blackburn dayblazer 400 front light

The Dayblazer is USB rechargeable so you won’t constantly have to worry about changing out batteries. The light is supplied with a micro-USB charging cable, allowing you to recharge it using any common and universal USB port.

A small LED battery light gauge is included with the light to help you know when it’s time to charge it. This way, you won’t ever have to worry about running out of battery power in the middle of the night.

Side Visibility

When cycling through densely populated urban areas, you’ll frequently have to contend with other road users approaching you from a variety of different angles.

Therefore, Blackburn specifically designed the Dayblazer’s beam to disperse the light produced and provide excellent side visibility, helping you to remain visible in even the busiest of driving conditions.

Light Modes

The light has four different light modes that are easily switchable between to find the best light mode for your current environment or battery life. The following are the light modes:

  • Blitz: 400 lumens light output – 1 hours battery life
  • Low: 200 lumens light output – 5 hours battery life
  • Pulse: 200 lumens light output – 6 hours battery life
  • Strobe: 200 lumens light output – 10 hours battery life


Unintentional engagement is very unlikely because the center-mounted switch is easy to use, even with gloves on.

Even without an automatic “idiot” kick down, being left in the dark should be an uncommon occurrence because the integrated battery life indicator provides a clear visual account at the point of selection.

Green means you have between full and 75%, orange means you have between 25% and 75%, red means you have less than 25%, and it will pulse sporadically at about the 10% mark. Deal on it shutting off after 15 minutes at this point; it’s a good failsafe, especially if it’s mounted on a helmet, but this is the point at which an automatic shut-off feature would be most useful.

Mounting Hardware

There are two alternatives: a bar or a helmet mount for a GoPro. Simply unscrew one from the lamp body and thread the other one in to switch between them. It is simple and quick to whip on and off the bar thanks to the swiveling design.

In ours, oversized and regular bars/extensions fit without difficulty. It might be worthwhile to first check for compatibility if you decide to use a helmet.

Customers Reviews

  • T. B.: These are fantastic. After a few months of use, the quality is good and they remain unchanged. Hold the charge well at first. I only use a few hours at night a week.
  • junk: crappy mount, only setting worth having is high, others are worthless. Hate the backlight on/off switch because it was so difficult to turn the light on and off.
  • skunkjuice: The light is bright and attractive on its own, but in less than a year, the strap broke, making it all but useless (replacement straps are unavailable everywhere I looked). I’ll have to jerry-rig something. The design, as other people have pointed out, is also flawed because it makes it challenging to attach the light if your handlebars are curved like mine is on the North Road.


The Dayblazer 400 offers excellent value for the money, even when taking into account the modest runtimes in steady modes.

If you’re seeking a compact, tuneable and inexpensive model, we recommend you Blackburn Dayblazer 400 Front Light, the price is 274.30158 HK$ and is available. You should look for something more powerful with a suitable runtime if you frequently travel unlit semi-rural or rural roads.

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