1. Patent appearance design, compact size easy to carry 2. Arcraft aluminum body drop resistant, Type II anodizing finish to protect surface 3. Use 3W CREE XP-E2 R3LED, up to 50000 hours life time 4. Tail button swich easy to change lighting mode, IP65 raining resistant, impact resistant PC lens. 5. 3AAA battery, max length 114mm, max diameter 30mm, bulk light 85g (exclude the battery) 6. Normal working temperature range -20°C~50°C 7. Purpose lighting for household, maintenance, outdoor etc.