What is the dark resistance?

Under a bright halogen lamp they range between 300-500 Ohms, in a poorly lit room (eg light of my monitor and photoresistor not directly illuminated but enough light to see) they range from 1 to 10 M Ohms then increase to 12-15 M Ohms and higher in darker parts of the room. When completely darkened with my meter on the 20M Ohm scale the resistance increases until my meter no longer can provide a value, so > 20MOhm.

Will this work on a 12v 1.3ah battery

It says in the info about it 150 volts is the maximum. I would say 12v should be fine. If not contact the vendor. I use them for Arduino or ESP32 or ATTINY85/13. I need to do more testing with them. I tried using them a few days ago and it didnt work. I need to play with them more to find out what I was doing wrong. These devices only output 5 volts so that could be the issue i am having.

Will these work in a 28 VAC circuit ?

Maximum wattage is 100 mW so 28 Volts (AC or DC) under a bright light would probably destroy them.

will these detect red laser light?

First off this product says it is manufactured by a company called “eboot”. They not an electronics parts manufacturer of any kind. You may want to contact them for the REAL manufacturer’s name and part number so that you can find the devices response to the laser. Your other option is to build a circuit and experiment with your laser perhaps using a LM339 voltage comparator etc

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EBOOT 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539)

EBOOT 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539)

Product ID: 41099661

⚡150V max voltage

🔆5mm precision sensor

🌡️-30°C to 70°C operating range

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Description

🔆 Illuminate your innovation with precision and power!

BULK POWER PACK - 30 high-quality photoresistors for all your DIY lighting projects
COMPACT LIGHTWEIGHT - Slim 5mm design fits seamlessly into any prototype or device
ROBUST VOLTAGE HANDLING - Supports up to 150V DC for versatile applications
WIDE OPERATING TEMPERATURE - Reliable performance from -30°C to 70°C, built to last
PRECISION LIGHT SENSITIVITY - Spectral peak at 540 nm ensures accurate light detection

The EBOOT 30 Pieces Photoresistor set features 5mm GM5539 sensors with a spectral peak at 540 nm, supporting up to 150V DC and operating reliably between -30°C and 70°C. Perfect for professionals and hobbyists alike, this bulk pack ensures you never run out of sensitive light-dependent resistors for your cutting-edge projects.

Specifications

ASIN	B01N7V536K
Best Sellers Rank	#22,846 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #31 in Single Fixed Resistors
Date First Available	January 23, 2017
Item Weight	1.44 ounces
Item model number	EBOOT-RESISTOR-05
Manufacturer	EBOOT
Product Dimensions	0.2 x 0.2 x 1.38 inches

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R209

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

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