http://www.hopetech.com/page.aspx?itemID=SPG66
Beautifully machined from aluminium billet, this tiny light packs a big punch with its twin high power LED’s pushing out 480 lumens. The small Li-Ion battery pack is now held in a custom made durable plastic case. The battery has built-in charge, discharge and short circuit protection. The connectors are fully sealed and totally waterproof (IP67). The single switch has a new cycle programme, which turns the light on in ‘low’ mode and cycles through to the higher settings.
In tests the 7.4v Li-ion battery will last for up to 30 hrs + on low and a minimum of 2 hrs on the high setting with the intelligent charger returning that in just 3 hours. The durable plastic case is small enough to fit under stems, top tube junctions or slip into a jersey pocket.
The 2 LED model utilises ‘thermal throttling’ techniques to increase the longevity of the LEDs and prevent damage to the electrical circuit due to overheating. This works by monitoring the temperature of the Aluminium heat sink and restricting the power when it reaches a critical level, thereby keeping the casing at an acceptable temperature for handling while providing extended battery burn times.
Lights can now be supplied with an option of longer burntimes. This is achieved by including either an extra battery (endurance), or a larger battery (epic).
Lights are supplied with handlebar and helmet mount. They also now include a full head harness to allow use off the bike whether running or just walking the dog. This head harness is now in use with many mountain rescue teams, fell runners and adventure racers.
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