The product is simple operation, stable performance and security, and emitting a pure blue-violet laser

Long after glow Photoluminescent stored light test pen

When people show the after glow product to client, it need in dark room. However it is hard to show its characteristic in daylight, so it limits the after glow products to be shown.

After glow test pen use superstrong focusing principle, it can excitated the after glow materials in 0.1 second, so the after glow materials can emit light instantly and last 30 seconds. The after glow test pen is helpful and successfuly for salesman to show the after glow product whenever.

After glow test pen is as big as common pen, use 2pcs AAA battery, it works 3 hours continuously, weight 100g, lifttime 10,000 hours, illumination distance 10 meters

After glow test pen is patented product, it is good for salesman to show after glow (stored light) product.