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Light Activated Relay Boards

Light Activated Relay Boards
Light Activated Relay Boards

Light Activated Relay Boards from our Electronic Kits & Modules range for industrial, professional, educational and hobby applications

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Velleman MK125 - Light Sensitive Switch Electronic Kit

MK125 Light Sensitive Switch electronic kit automatically switches on at dusk and turns off at dawn...

£3.90 Exc VAT, £4.68 Inc VAT
In Stock (UK Warehouse3)
AS3079Bv3KT - Light / Dark Activated Dusk Dawn Sensor Relay Switch

New improved version dusk dawn sensor switch with 5 Amp mains rated relay. Light/Dark activation switch. Adjustable trigger sensitivity. LDR and 741 op-amp IC circuitry. Can operate with fast or gradual light change....

Buy 1-4: £8.29 Exc VAT, £9.95 Inc VAT Each
Buy 5-19: £7.05 Exc VAT, £8.46 Inc VAT Each
Buy 20+: £6.63 Exc VAT, £7.96 Inc VAT Each
AS3079AKT - Basic Light / Dark Activated Switch

This circuit uses a simple LDR based circuit in super-Darlington set-up to turn on the relay output. A Light/Dark mode switch is used to select either light or dark activation of the relay...

£12.46 £10.80 Exc VAT, £12.96 Inc VAT (Save 13%)
AS3079CKT - Light / Dark Activated Switch (Schmitt Trigger)

This kit uses the LDR and Schmitt trigger circuitry to eliminate the problem of relay chatter at the trigger threshold so that the circuit can be used where the change in light with be small and gradual...

£12.46 £10.79 Exc VAT, £12.95 Inc VAT (Save 13%)
Cebek I-4 (CI004) - 12Vdc Light Activated Relay Module

12Vdc light activated detector module with adjustable sensitivity and mains rated relay output allowing switching of loads up to 230Vac, 5A. The relay is activated when the light level falling on the detector board rises above a user set threshold. The rel...

£11.96 Exc VAT, £14.35 Inc VAT
In Stock (UK Warehouse3)
Cebek I-42 (CI042) - 12Vdc Darkness Activated Relay Module

12Vdc darkness activated detector module with adjustable sensitivity and mains rated relay output. The relay is activated when the light level falling on the detector board drops below a user set threshold. The relay is deactivated when the light level in...

£12.51 Exc VAT, £15.01 Inc VAT
In Stock (UK Warehouse3)
Cebek I-104 (CI104) - 230Vac Light Detector Relay Module

Pre-built 230Vac Light Detector Relay Module with relay output allowing switching of any load up to 230Vac, 5A. Adjustable sensitivity and LED indicator...

£15.55 Exc VAT, £18.66 Inc VAT
In Stock (UK Warehouse3)
Cebek I-142 (CI142) - 230Vac Darkness Activated Relay Module

230Vac darkness activated detector module with adjustable sensitivity and mains rated relay output. The relay is activated when the light level falling on the detector board drops below a user set threshold. The relay is deactivated when the light level i...

£16.20 Exc VAT, £19.44 Inc VAT
In Stock (UK Warehouse3)
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