Retrofit LED AR37 reflector light bulb, featured with high quality Aluminum shell and reflector, PMMA lens, 10°/24°/36° narrow spot light beam, COB LED chip with up to 120lm/W lumen efficacy, AC/DC 12 Volts safe low input voltage and BA15d lamp cap. Ideal for the light fixtures worked in vibration circumstance, good to equipment lighting, machine lighting, vehicle lighting and ship lighting, etc., as well as decoration in commercial lighting.