BLS-143 - Brightness: 130 Lumens (3 hours), 20 Lumens (10 hours), Flash mode (5 hours) - Connector: Micro USB - Steady modes: High, Standard, Low (remembers the last setting used) - Flash modes: Flash (remembers the last setting used) - Water resistance rating: IPX5 BLS-145 - Brightness: 8 Lumens (3 hours), 3 Lumens (8 hours), Flash mode (15 hours), Day Flash mode (28 hours) - Connector: Micro USB - Steady modes: High, Low (remembers the last setting used) - Flash modes: Flash, Day Flash (remembers the last setting used) - Safety mode runtime - Water resistance rating: IPX5