168 lumens, 80 hours (till 10% lumens.. it'll be closer to 10% the majority of that period). Tenergy makes some low self discharge NiMH D cells but they're $19 a two pack and decent D cell capable chargers are rare and costly. 2x or 3x AA adapter cartridges are around $2 on /etc. http://www.amazon.com/Tenergy-Centura-Self-Discharge-Rechargeable-Batteries/dp/B0041TEHMS
Comments & Reviews (2)
http://www.amazon.com/Tenergy-Centura-Self-Discharge-Rechargeable-Batteries/dp/B0041TEHMS
Thank you!