Yes, I got my money's worth – NEW-366 3 x CREE XM-L T6 2800lm 4-Mode White Outdoor Headlamp - Black + Silver (4 x 18650) Reviews
posted by MongooseKM on 01/26/2013
Involvement:Expert (understands the inner workings) - Ownership:1 week to 1 month
Beam Angle is adjustable and appropriate for close in work. Beam spread is suitable for illuminating work area instead of distant spot. Low intensity setting will be adequate for most projects. Beam intensity is sufficient, even if it's 1200 lumens
No spare battery unit is offered as an accessory.
Unknown if the 18650 batteries have the protection circuit or if the charger contains a protection circuit. It probably does. User manual is missing or not published. DealExtreme, clarify 1200 or 2800 lumens, box reads 1200.
Instructions: Charge until green lamp. Mount lamp to curve in platform, route rubber piece along circle between post under lens and post to rear, tab end to rear Lamp becomes adjustable. Power to lamp is 7.4VDC. Route cable under strap to fall behind you.
Think safety. Unit is bright enough to hurt others.
Spare battery unit can be built with DealExtreme parts 100997,105084,5790,163563. Each holder is in series, Solder outputs of holders to function in parallel. Test for about 7.4VDC. Observe polarity.
Recommendation: Offer to sell an optional spare battery unit.
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