12W ideal for most off road conditions or commuting. For more technical rocky terrain you may want to consider a 20W lamp. 20W ideal for all off road conditions. Aim-as-you-ride CNC bar mount with quick release clamp and light offset. Battery stores in water bottle cage.
Options Include: 3 light level smart switching light head and 5 level fuel gauge on battery.

12W or 20W Brilliant halogen lamp
65 grams, (2.3 oz.)
2.75" x 1.70" x 1.85"
Beam pattern 30ft x 300ft at 12W
Beam pattern 50ft x 150ft at 20W

Battery: 13.2V NiMH water bottle battery pack
675 grams (23.8 oz.)
Built in 5 LED Fuel Gauge (Fuel Gauge Model)

Charger: Intelligent 5 hr fast charger

Run Time:
Standard:
12W 3hr, 20mins
20W 2hr, 0mins

Switched:
12W Bulb
- 8W 6hrs, 5mins
- 10W 4hrs
- 12W 3hr, 20mins
20W Bulb
- 10W 4hrs
- 15W 2hr, 55mins
- 20W 2hr, 0mins

Weight Complete system weight 855 grams (31 oz)