Lichtset Nano Strike 400 + Spark BLS-152 BLS-131: – Runtime: 400 Lumen / 31 Lux (2h), 15 Lumen / 1.5 Lux (48h), Flash 42h – Charge time / port: 3:30 hours (2A) / Micro USB – Modes steady: Boost, High, Standard, City (saves last mode) – Modes flash: Day Flash and Flash ( saves last mode) – Runtime safety mode – Water resistant: IPX4 BLS-152: – Runtime: 10 Lumen / 1.4 Lux (3h), 3 Lumen / 0.5 Lux (10h), Flash 28h – Charge time / port: 1:45 hours (2A) / Micro USB – Modes steady: Low, High (saves last mode) – Modes flash: Day Flash and Flash ( saves last mode) – Runtime safety mode – Water resistant: IPX7