HA-III CREE XM-L T6 LED 3-Mode 1000-Lumen Headlamp Set (4*18650 included)

The Advantages of LED Technology:

An LED is ideal for lights that are used often and over an extended period of time. You don't have to worry about breaking the light, since there is no glass or filament, and you rarely have to replace LEDs because they can last a lifetime. Save time and money on batteries as well--they will last much longer with an LED than with a regular light bulb
How to Compare LED Bike Lights:

LED bike lights have improved steadily over the years and are now more powerful and longer lasting. A wide variety of mounting systems and beam strengths are available to suit the lighting needs of almost any rider. Manufacturers pack multiple LED bulbs into a single lamp to multiply light intensity and increase visibility. Compare the performance, price and features of LED bike lights that are currently available to find the one that works best for you
Evaluate the brightness in lumens of the available LED bike lights. Most manufacturers will list the total generated lumens in the product description or on the packaging. Brightnesses vary greatly from just over 100 to almost 2,000 lumens
Look at the different estimated run times and power source options on the LED bicycle lights' packaging. Nicad-powered LED lights tend to burn out much more quickly than those powered by NiMh and lithium ion batteries
Review the the various mounting designs and available versatility features. Mounting brackets may not be adjustable and are often designed for one handlebar diameter. Some models have more than one light that can be positioned separately
Check for extra features such as dimmer control, flash settings and color change. The controls for these features should be large enough and accessible so they can be adjusted while riding
Compare the relative prices of LED bike lights that have similar features and power
Package Included:

1 x Headlamp
1 x Head Strap
1 x 100~240V AC Power Adapter (US Plug)
2 x Rubber Bands
1 x Battery Set
 

Specifications:

Brand:
 Stars
 
Model:
 T6 Headlamp
 
Emitter Brand:
 CREE
 
Emitter BIN:
 XM-L T6
 
Color BIN:
 White
 
Total Emitter:
 1
 
BatteryConfigurations:
 4 x 18650
 
Voltage Input:
 14.8V
 
Switch Type:
 Clicky/Clickie; Glow-in-the-dark/GITD
 
Switch Location:
 Tail-cap
 
Modes:
 3 Mode(High-Low-Strobe)
 
Circuitry:
 DC-DC
 
Brightness:
 1000 lumens maximum brightness(manufacturer rated)
 
Runtime:
 3 hours
 
Lens:
 Coated Glass Lens
 
Material:
 Aluminum alloy
 
Reflector:
 Aluminum Textured/OP Reflector
 
Head Strap:
 Strap Included
 
Spare Parts Included:
 1 x Head Strap, 1 x 100-240V AC Power Adapter(US Plug),2 x Rubber Bands, 1 x Battery Set