November 30, 2010
GMG Special 900 PLUS
Smaller than expected.
Good beam pattern.
Good battery life.
Easy to adjust while wearing it.
Easy to turn on/off while wearing it. (Mine is the older 3-way switch model)
Good build quality. (light head unit)
Can be mounted on either bars or helmet.
Battery cable length is about right.
Battery plugs in firmly and stays plugged in.
Cordura pouch with velcro strap makes it easy to mount the battery on your frame.
Rubber O-ring mounting is simple and secure.
Battery comes wrapped in a single piece of plastic film, it really should be rubber dipped.
Can be hard to find for sale.
Advertised as 900 lumens but is really 700.
Your friends who paid $500-$600 for brand name lights will hate you.
I paid $68, with shipping, for this light from an eBay retailer in Hong Kong. It took about 3 weeks to arrive, and it was marketed with a 'headlamp' mount rather than a helmet mount.
When I got the unit, it was smaller and lighter than I expected, and the 'headlamp' mount is actually the plastic part of the helmet mount, but with stretchy head straps sewn onto it.
I removed the stretchy straps and installed a pair of sleeping bag straps I had on hand from backpacking...it now mounts to my helmet in a manner very similar to the NiteRider strap mount. It is snug and doesn't move at all while riding, but can be released quickly.
Next I bought a can of PlastiDip for $6 at the hardware store and rubber dipped the battery to weather proof it. Two coats sealed it nicely and it still (barely) fits into the cordura and velcro pouch that it came with.
On the trail, this light is noticeably brighter than my friend's Amoeba, and as bright as a Light & Motion Seca 700. However the Seca maintains those lumens over a substantially wider beam.
The bottom line is that this light, for under $100, will totally enable your night riding, and two of them would be suitable for 24 hour racing. There is no need at all to drop $500 on the name brand stuff.