ITEM NAME:20X Photoresistor GL5528 LDR Photo Resistors Light-Dependent MO.Illumination resistance characteristics: 3. Dark Resistance (MΩ): 1. Light Resistance (10Lux) (KΩ) :10-20. Ambient temperature (℃): -30~+70. Ambient temperature (℃): -30 --- +70. Model: 5528. Spectral peak (nm): 540.