| Specification | GL-T666(A) | GL-T666(B) |
|---|---|---|
| Light Source | One main light | One main light |
| Battery Capacity | 6400mAh Li-ion battery 18650 | 3200mAh Li-ion battery 18650 |
| Rated Voltage | 3.7V | 3.7V |
| Strong Light Current | 760mA | 760mA |
| Weak Light Current | 260mA | 260mA |
| LED Power | 5W | 3W |
| Brightness (1 meter) | 10000-16000 Lux | 5000-8000 Lux |
| Main Light Life Span | 100,000 hours | 100,000 hours |
| Battery Cycles | 800 cycles | 800 cycles |
| Charging V/A | 5V / 1.5A | 5V / 1.5A |
| Working Time | 15-10 hours | 15-10 hours |
| Weight | 360g | 250g |
| Water-proof Grade | IP68 | IP68 |