... as heat sink, firm and endurable;Environmentally friendly, no pollution and no radiation;High-quality illuminant, low attenuation, high brightness, ... high luminous efficiency;Instant response, soft light, no stroboscopic phenomenon;Widely-ranged input voltage, safe and reliable.1. Light sourcesUSA ... LED spot light. (The CRI>80Ra, high brightness and no glare lens or reflector used)2. LED driver(LED ...