Luminous Flux Meter TES-133 1).Best for measuring:LEDs, Small lamps, Fiber illuminators 2).Adapters kit:2/3/4/5/8/10/24mm Hot-selling Item Luminous Flux Meter Light Meter TES-133 TES-133 Luminous Flux Meter4-digit LCD reading. Spectral Sensitivity close to CIE photopic Curve. Auto ranging from 0.05 to 7000 lumens. Accurate and Instant response. Data Hold function. Data memory and read function. ...