The Princeton-Tec Quest Headlamp weighs 164 grams and contains 1 halogen bulb, 1 long burn bulb, 2 AA batteries and up to 8 hours of burn time. The Princeton-Tec Quest Headlamp weighs 164 grams and contains 1 halogen bulb, 1 long burn bulb, 2 AA batteries and up to 8 hours of burn time.