++ Very powerful lamp, you really see where you put your wheels + 3 power levels + Strobe (for those who bear) + Finishing and strength + Packaging + Can be mounted on bike or headlamp + - Elastic mounting system for the lamp (an elastic spare supplied) and scratch for the battery. - Significant weight (330 gr lamp + battery) - Separate battery pack, so connecting cable to manage - - No instructions provided Usage perfect for those who need to use their night bike on routes without street lights. Origin Netherlands