The Duo has 2 light sources. The first uses a standard bulb for economic use. The second has a halogen bulb which gives it a powerful light. The latter is adjustable and allows the width of the beam to be adjusted. The beam adjustment control as well as the lockable on / off switch are easily accessible and separately sited.Supplied with spare 6V standard and halogen bulbs.
Specs :
Weight: 200 g not including batteries.
Uses 4 AA-LR6 batteries.
Standards :The Duo is certified by UL for use in hazardous locations and rated Class I, Div. 1, Groups C, D T2A
Martin Cash - Nov 13, 2002 3:24 pm - Voted 5/5
Untitled ReviewThe regular bulb is rated to illuminate to 20 meters and the halogen to 100 meters, making this a very versatile product.