... in, 2. It is convenient to power the testing lamp Specifications:• Diameter: IS-0.3M (φ0.3m),IS-0.5M (φ0.5m),IS-1.0M ... (φ1.0m),IS-1.5M (φ1.5m),IS-1.75M (φ1.75m),IS-2 ... .0M (φ2.0m). Other sizes can ... lamp, CCFL. The flux testing range is 0.1 to 1,999,900 lm• IS-2.0M is suitable for HID lamps or other ...