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Midwave 310nm UVB LED flashlights are finally a reality! These custom-designed flashlights are the culmination of hundreds of hours of research and development done by multiple very talented people and truly represent the state-of-the-art in UV technology. The B310-4 emits Midwave 310nm UVB light in an 8 to 12-degree cone producing a brilliant fluorescent response within the area of illumination.




  • Uses A State-of-the-Art 310nm Midwave UVB LED
  • Standard ZWB3 Filter With An Unlimited Lifetime 
  • Total Power Consumed: ~18W
  • Beam-angle: 8 to 12 degrees


  • Battery Operation: Battery Operation: Single 26650 or Single 18650 With Included Adapter 
  • Runtime With 26650 Battery:  >1 hour


  • Runtime With 18650 Battery With Included Adaptor: 30 minutes


  • C8 Style Flashlight Host With Enhanced Heat Sinking
  • Custom LED Driver With Built-In Thermal & Low Voltage Protection - Keeps Your LED And Battery Safe!


  • Light Only Option Includes the Flashlight Only


  • Light + Kit Option Includes the Flashlight, 1 Rechargeable Lithium Ion Battery, a Battery Charger, and Wall Adapter


Please note there is a 2 week lead-time on all B310-4 orders.


Need More Batteries? Click Here!

Need Another Battery Charger? Click Here!

B310-4 - High Power MIDWAVE UVB Flashlight

SKU: B310-4
  • If you're not satisfied with our products, you can return the item(s) within 90 days, and we'll refund you the purchase price minus a 10% restocking fee.


    • The restocking fee is in place to cover our third-party fees.
    • Shipping fees are non-refundable.
    • When returning an item, please box it appropriately.
    • All returns are subject to inspection.


    The following items cannot be returned, unless there is a Valid Warranty Issue:

    • Any part that shows evidence of being used, installed, handled, packaged, or shipped improperly.
    • Custom-ordered or personalized products.
    • Hazardous/Consumable materials such as batteries and bulbs.
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