Yielding up to 64 lm of brightness at 75 mA drive current, MTLR-WZ Series has .196 in. OD and utilizes 6 phosphor-coated LED chips offered in Warm, Neutral, and Cool color temperatures. Center of ring has .073 in. ID hole that can be used to pass miniature camera through for detection of evenly illuminated surface. Designed for hand held instrumentation, products feature metal core board design. Ceramic, copper, and AlN boards are available via custom design/manufacture.