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4000 Lumen light set - Excellent Mountain Bike light (SF-548)

       READ REVIEWS (1)

Four Cree XML-T6 LEDs providing up to 4000 lumens 

Waterproofed 6-cell lithium-ion rechargeable battery pack

Powerful and functional unit - ideal for bar mounting   

Powerful Mountain Bike light


Four Cree XML-T6 LED's will light the way on the darkest night, this light is designed for a huge level of light output in an efficient and robust unit

This is an ideal Mountain Bike light offering a huge level of illumination

The light unit is mounted onto handlebars using the convenient rubber 'O' rings, which can also be used to mount the unit onto a helmet mount or headstrap (see 'Accessories and Spare Parts' for headstrap and helmet mounts)

Light output levels are available of 4000 lumens (100%), 2640 lumens (66%) and 1320 lumens (33%) - selected from the illuminated and easily operated switch on the rear of the light unit

Powered by a high capacity 6-cell waterproofed lithium-ion rechargable battery pack, this light will run for up to 3 hours on high output and over 6 hours on low output

The 6 cell battery is supplied in a battery pouch equipped with a velcro strap for conveniently attaching te battery pack to bike handlebars or toptube


       Optional headstrap available for added flexibility
       - see 'Accessories'


The SF 548 package includes

    SF 548 light unit - using 4 * Cree XM-L T6 led
    6600 MaH 6 cell battery pack in tight fitting waterproofed rubber case
    Battery pouch with velcro straps
    2 * rubber mounting rings
    UK smart charger

SF 548 technical product description:

    Max output: 4000 lumens
    Max Runtime 3 hrs (high) 6+ hrs (low)
    Manufactured by SingPad technology for BrightBikeLights
    LED: XM-L T6
    Four modes: High> Medium> Low> Strobe
    Lens: Toughened ultra-clear glass lens with anti-reflective coating
    Material: T6063 durable aircraft-grade aluminum
    Powered by a separate rechargeable battery pack (6 x 18650 lithium batteries)
    Voltage Input: 8.4V max
    Waterproof: to IPX-64 standard



I bought this light wanting something extremely bright but affordable that could be used on dark mornings when I take long cycle rides before the family is up!My ride takes me on a country lane where I meet occasional oncoming vehicles, then on a narrow single-track lane with multiple pot-holes, and finally on a cycle path by an extremely busy road where I am constantly fighting with oncoming headlights and trying to see my own path rather than being stunned by the lights in my eyes.I'm really happy to say that it meets all three needs. When I'm faced with occasional traffic my eyes have been looking at a bright enough light infront that I am not fazed by the oncoming lights. The road is clearly lit up so my speed is not compromised by how much I can see. On the rough road I have clear vision of the twists and bends and all the road surface such that I can ride safely without fear of being jolted by an unexpected obstacle.Finally, on the main road my light is strong enough to light up the path I'm on, even with the constanct stream of vehicle lights in the opposite direction. Therefore, I can still cycle as fast as I am able wihtout the frea of going off the path into the road when I can't see the edge!I'm really happy with the light.I unplug it from the battery between uses as I'm not sure how much the button lighting up will drain away the charge, and it takes a tight grip and strong pull to do this. There is no low battery warning, but I am just charging it after 3 rides, which is just short of 3 hours on full, and this works fine.Having such a powerful battery pack and the wirse means it is not easily transferable between bikes, but the light is so good we're going to buy a second one so that my husband has one for his cycle commute. 

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Why us?

We specialise in powerful led lights for Running, Mountain Biking, Orienteering and Cycle Commuting

We are in close contact with Orienteering, Mountain Biking and Running groups and we welcome and act upon the feedback we receive, to ensure that the lights we provide are the best for the intended purpose


All lights are sold with a 12 month warranty

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