The Nitecore Thumb LEO has a maximum output of 45 lumens white light, has a beam range of 25 metres and is powered by a built-in, rechargeable, Li-ion battery.
The Thumb LEO USB UV is just like the Nitecore Thumb however has a UV light and features the same tiltable head, rechargeable battery and screw fastened clip. The Thumb LEO keyring torch is different however, only housing one LED of white light at 45 lumens and a second LED of 500mW UV light.
The lights on this torch are turned on and off using the button closest to the head; by clicking once for the white light, again for the UV light and a third time to turn off. The button towards the end of the torch activates the red/blue flashing signal on top of the torch.
The Nitecore Thumb LEO like the Thumb is extremely useful it can be attached to your pocket or jacket, as the 120º tiltable head can be adjusted as required.
Why not also take a look at the Nitecore Thumb for a similar keychain torch
White: 45 lumens; 2 hours run-time
UV: 2 hours run-time
Red/Blue Signal: 48 hours run-time
Modes: White / UV / Red/Blue Signal
Lumins: Up to 45 lumens (white light)
Wavelength: 365 nm
Range: 24 m
Lamp: 1 x white LED / 1 x 0.5 Watt Ultraviolet LED / 1 x red LED / 1 x blue LED
Battery: Built-in 220 mAh lithium-ion battery
Run Time: See information above
Measurements: 74 x 24 x 15.8 mm
Weight: 25 grams
Material: High strength polycarbonate
Environmental: Dust and water resistant to IP65 standard
Impact Resistance: 1.5 m
Warranty: 1 year
Regulatory Compliance: CE / RoHS