GL5537 Photoresistor LDR 20-50kΩ 5mm (Pack of 2)
Prices updated: 14 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | GL5537 Photoresistor Sensor LDR 20-50kΩ 5mm 2Pcs | 5 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 5 EGP
About this product
GL5537 is a 5 mm light-dependent resistor (LDR) whose resistance falls as light intensity rises, with a listed light resistance of 20 to 50 kΩ. It is used for light detection, automatic lighting and simple DIY sensor projects. The pack contains two pieces.
Specifications
- Type
- Photoresistor (LDR)
- Diameter
- 5 mm
- Light resistance
- 20–50kΩ
- Pieces per pack
- 2
Frequently asked questions
What is the price of GL5537 Photoresistor LDR 20-50kΩ 5mm (Pack of 2) in Egypt?
GL5537 Photoresistor LDR 20-50kΩ 5mm (Pack of 2) currently costs 5 EGP in Egypt.
Where can I buy GL5537 Photoresistor LDR 20-50kΩ 5mm (Pack of 2) in Egypt?
GL5537 Photoresistor LDR 20-50kΩ 5mm (Pack of 2) is available from Makers Electronics. Compare the offers above to find the best price.
How do I read it with an Arduino?
Build a voltage divider with the LDR and a fixed resistor, for example 10kΩ, between 5V and GND. Connect the midpoint to an analog input such as A0 and read it with analogRead().
Is it fast enough for quick light changes?
No. LDRs respond relatively slowly compared with photodiodes or phototransistors. For fast light pulses or accurate timing, use a photodiode or phototransistor instead.
