Spectroline Optimax Jr. is a leak detection flashlight that reveals refrigerant leaks in cramped areas inaccessible to larger lamps. It is 7 ¼ inches long, weighs 5 ounces and can fit in a shirt pocket. This powerful, low cost flashlight makes all fluorescent dyes glow brightly so technicians can quickly pinpoint leaks in air conditioning and refrigeration systems. Three AA batteries provide four hours. of operation. Spectronics Corp.: www.spectroline.com