Perferct Service - Veritable SCIAN trademarked products - In business since 1993 - SCIAN guarantees to provide 30 days refund or replacement service & 3 years free customer service. What you get - 0.15 Watts 3.0 Volts 0.05±10% amperes LED Bulb. High-intensity Bright Bulb - 25 lumen Luminance, Kelvin Color are 6000K ± 5%. Bulb Life Over 20K Hours - Utilize exclusive Optical SMT LED technology, the light effect is more stable, light irradiated area increases, low power consumption and long life. OEM Product - Provide by Scian Manufacturer Directly, Replace Scian Otoscope Bulb HS-OT10G & HS-OT10J Model.