Tag: IP66

  • Acebeam X35 Searchlight: USB-C, Dual 21700, Side Light

    Acebeam X35 Searchlight: USB-C, Dual 21700, Side Light

    Key Takeaway

    – 20,000 lumens with 458-meter beam distance, but weighs nearly 500g (more like a rugged phone than a compact one).
    – Powered by two replaceable 21700 batteries (36 Wh total), with USB-C charging and IP66 rating.
    – Dual lighting: main beam (up to 58h at 40 lumens) plus a lantern-style side light.
    – Turbo mode (20,000 lumens) runtime unlisted; 3,000-lumen mode lasts 10 min before dimming to 2,000.
    – Pre-order at $172.40, shipping from China around June 18, 2026; includes magnetic base and optional handle.

    Big Light, Big Claims

    Acebeam have officially unveiled the X35, a rather large flashlight that just barely fits into large trouser pockets. This is due to its 20,000 lumens and a beam distance of 458 meters. Acebeam nevertheless presents the flashlight as a compact model, comparing it to a smartphone. The X35 is indeed comparable in size to what are deemed compact smartphones nowadays. However, at almost 500 grams, the Acebeam surpasses even heavy smartphones and falls more into the rugged phone category. Compared to small EDC flashlights, the X35 is very large, as the following photo, which we took during our UC3A hands-on, clearly shows.

    Battery and Power Specs

    The X35 requires the large volume not only for the three Cree XHP70.2 LEDs on the front, but also for the two batteries. Acebeam installs two replaceable 21700 cylindrical cells with a total capacity of 36 watt-hours. However, the batteries can remain in the flashlight, as it features a USB-C port with a protective cover. The X35 has an IP66 rating.

    Lighting Modes and Run Times

    In addition to the main light, which lasts 58 hours at 40 lumens and 5.1 hours at 1050 lumens, there’s also a side light that functions like a lantern. As Acebeam informed us, the internal design is comparable to the side light of the UC3A, just larger. Runtimes for the side light are not specified, nor is the runtime for the 20,000-lumen turbo mode. At 3,000 lumens, the flashlight lasts for 10 minutes before dimming to 2,000 lumens.

    Mounting and Features

    Thanks to a magnetic back, the nearly 500-gram flashlight can be attached without a mount. Speaking of mounts, a handle can be attached to the power switch for easier carrying. The button is mechanically guided through the handle. Due to its many functions, operating the flashlight is somewhat complex. The diagram from Acebeam at the end of this article illustrates this.

    Pricing and Availability

    The flashlight can be pre-ordered directly from Acebeam for $172.40 and will be shipped from China. Delivery is expected to begin around June 18, 2026, and availability at Amazon is expected to follow soon.


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  • Fenix BC28R Wireless Bicycle Lights with USB-C & 21700 Battery

    Fenix BC28R Wireless Bicycle Lights with USB-C & 21700 Battery

    Key Takeaway

    – Front light: replaceable 21700 battery (18 Wh) with up to 2,500 lumens (high output) but limited runtime and heat; multiple modes from 50 to 1,400 lumens, with longer runtimes (up to 52 hours) at lower outputs.
    – Rear light: built-in ~1.5 Wh battery (400 mAh), steady runtimes up to 6 hours; need flashing mode to reach mid-range runtimes (up to 15 hours).
    – Pairing and sharing: lights can be paired to turn on together; rear light adjustable from front light within about 5 feet; battery level indicator only on the front light; both can be charged while in use.
    – Design and availability: IP66 water resistance, some impact resistance, compatible with ALD-10 Quick Release Bike Mount; introductory US price around $130 (later around $170).

    Fenix has introduced the BC28R light set. It consists of two lights designed specifically for use on bicycles. The set is IP66-rated, meaning it can be used in heavy rain according to the manufacturer, and it is also said to withstand some drops.

    Pricing and Availability

    The set is currently available in the US for an introductory price of around $130. It is expected to cost $170 later.

    The white front light uses a replaceable 21700 battery (ARB-L21-5000, 18 watt-hours). The red rear light is different, as it has a built-in 400 mAh battery, presumably with a capacity of about 1.5 watt-hours.

    Brightess and Runtime Details

    The front light can get very bright. According to the spec sheet, up to 2,500 lumens are possible with a range of 591 feet. However, that is more suitable for flashlight use, since the BC28R gets very warm at that level and only lasts 2 hours and 36 minutes despite throttling. It would also heavily dazzle other road users.

    The other modes are more realistic, with 50 to 1,400 lumens and runtimes ranging from 52 hours down to 7 hours.

    Rear Light Runtime

    Unfortunately, the red light does not offer comparable runtimes. In steady mode, it lasts up to six hours at most. To reach the mid-range runtime of the white light, the flashing mode is required, which increases runtime to up to 15 hours. The full runtimes can be seen in the screenshot below.

    On the upside, the front and rear lights can be paired. This means they both turn on at the same time. Fenix does not specify which wireless technology it uses. The rear light can also be adjusted via the front light. However, the distance between them must not exceed 5 feet. A battery level indicator is only available for the front light. Both lights can also be charged while in use if necessary.

    Compatibility and Extras

    The front light is also compatible with Fenix’s optional ALD-10 Quick Release Bike Mount with GoPro Mount Adapter. The set is currently available in the US for an introductory price of around $130. It is expected to cost $170 later.


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