MM-818R Metal Master Headlight, Brightness 420 LM, Run Time 8.5 Hours, Battery Li-poly 3.7V 2800mAh

Gentos MM-818R is a compact, USB-rechargeable LED headlight from the Metal Master series, engineered for hands-free illumination in automotive repair, work sites, and outdoor tasks. Featuring a high-luminosity chip-type white LED with a collimator and diffusion lens for adjustable spot-to-wide beam, it delivers up to 420 lumens in High mode with a Boost option for 640 lumens (10 seconds). With IP64 dust/drip resistance, 2m drop-proof aluminum body, and a 140° movable head, it's durable and versatile, including rear recognition light for safety and instant-off functionality.

Key Performance Specifications

• Brightness (approx.):
  • High Mode: 420 lm
  • Mid Mode: 190 lm
  • Eco Mode: 25 lm
  • Boost Mode: 640 lm (10 seconds)
• Light Intensity (approx.):
  • High Mode: 1936 cd
  • Mid Mode: 915 cd
  • Eco Mode: 128 cd
  • Boost Mode: 3233 cd
• Runtime (approx.):
  • High Mode: 8.5 h
  • Mid Mode: 17 h
  • Eco Mode: 45 h
  • Rear Recognition (ON): 40 h
  • Rear Recognition (Flashing): 115 h
• Irradiation Distance: 88 m (max)
• Beam Angle: Fixed spot beam
• Light Sources: 1 × high-luminosity chip-type white LED

Physical and Environmental Specifications

• Dimensions (W × H × D):
  • Head: 55.0 × 28.0 × 30.0 mm (2.17 × 1.10 × 1.18 in)
  • Battery Box: 96.7 × 37.0 × 35.0 mm (3.81 × 1.46 × 1.38 in)
• Weight: 189 g (6.7 oz, with battery)
• Battery: Dedicated Li-ion 3.7V 2800 mAh; ~300 charge cycles; 4 h charge time via Micro USB
• IP Rating: IP64 (dustproof and drip-proof)
• Drop Durability: 2 m
• Operating Temperature: Suitable for indoor/outdoor use (no specific range listed)

Key Features

• Design: Aluminum body with 140° movable head for flexible aiming
• Controls: Side-push switch on head (modes: High-Mid-Eco-Boost-OFF); head-push on battery box; instant-off (press after delay to turn off from any mode); slow lighting off (gradual dimming)
• Mounting: Adjustable anti-slip headband (25 mm width)
• Additional Functions: Rear recognition light (ON/Flashing); charging indicator; caution against direct eye exposure
• Applications: Nighttime work sites, indoor tasks, and general hands-free lighting
• Standards Compliance: RoHS compliant; ANSI FL1 standard