Explosion-proof Lighting Headlamp

Provide qualified test reports and explosion-proof certificates issued by nationally recognized third-party testing institutions; markings comply with the "Unified Style Identification Requirements for 2017-style Firefighter Wearable Explosion-proof Lighting Lamps": I. Main Structure The 2017-style firefighter wearable explosion-proof headlamp adopts a straight cylindrical structure design, featuring switchable functions for high beam, low beam, and strobe light, with strobe frequency of 8-10HZ. It consists of a shell, optical unit, charging port, battery level display unit, battery, and switch. Lamp weight ≤110g, clamp weight ≤40g. 1. The lamp shell shall be made of AL6061-T6 aluminum alloy, with hard anodized surface treatment, color matte black. 2. The middle part of the lamp body tube features knurling treatment; the distance from the knurled section to the front end of the lamp head is 24mm±1mm, and to the rear end of the lamp tail is 10mm±1mm. 3. The lamp shell protection rating shall meet the IP68 requirements specified in GB 4208-2008, while also indicating the diving depth and duration; dropping the lamp from a height of 2m shall not affect its use. 4. After 10 minutes of operation, measure the central illuminance of the light spot at 2m distance: maximum central illuminance for high beam ≥1800lx, for low beam ≥700lx. II. Auxiliary Structure 1. Charging Port: The lamp tube shall have a universal Type-C charging port hole, with a length of 7.9±1mm and width of 5±0.3mm; the distance from the front end of the hole to the front end of the lamp head is 30±1mm. When charging, the battery indicator shall display the charging status and current battery level using a running light effect. Full charge time from complete discharge shall be less than 4h. 2. Battery Display Window: The lamp tube shall have a universal battery display unit window, adopting a four-segment blue battery display design, each segment representing 25% battery; hole length 11±1mm, width 3±0.3mm; parallel to the charging port, axial angle with charging port 35°; distance from the front end of the display window to the front end of the lamp head is 30±1mm. When remaining battery is less than 25%, the last segment of the display light blinks continuously to remind of low battery. 3. Installation Step Structure: Symmetrical installation steps are designed on both sides of the middle of the lamp tube, step length 40±1mm, width 7±1mm. Distance from the front end of the step to the front end of the lamp head is 40±1mm, and the step is perpendicular to the battery display hole structure. 4. Tail Cap Groove: To facilitate switch pressing, a groove structure shall be designed at the tail of the lamp, symmetrically on both sides, arc radius Φ30±1mm, height 2.4±0.5mm. 5. Lanyard Hole: A lanyard hole shall be designed on the outer cover of the lamp, located on the non-grooved part of the tail cap. Hole specification (4±0.5)mm×(1.4±0.5)mm, symmetrical design totaling 4 holes. 6. Switch Hole: A switch hole shall be designed in the middle of the tail end of the lamp shell, diameter Φ13±0.5mm, located centrally at the tail end. 7. Button Switch: The lamp shall feature an integrated orientation lamp large switch design, with a white transparent button-style large switch at the tail, diameter not less than 12.5mm; the switch integrates a red constant-on orientation lamp for positional indication, with a visible distance of not less than 100m on clear nights. 8. Clamp: Headlamp clamp compatible with slide rails of firefighting helmets and emergency rescue protective helmets (clamp made of metal), adjustable up and down. III. Battery 1. The battery shall be a rechargeable lithium battery, rated voltage DC3.7V, rated capacity not less than 1.9Ah. 2. Positive and negative electrodes shall be set simultaneously at both ends of the battery, with symmetrical polarity design; the battery can work normally regardless of insertion direction. IV. Markings The lamp head bears the permanent mark "2017-style Firefighter Wearable Explosion-proof Lighting Lamp". Centralized charging boxes are encouraged; the charging box shall have charging indicators showing whether all lamps inside are fully charged.