Charge Controllers

Morningstar SunLight

£ 91.8GBP · price may vary

Model: SL-10L-12V
Specifications: 5

System Battery Voltage12V
Max VOC30V
ConnectionScrew terminals
Weight (kg)0.4
Warranty5

Overview

These are ideal controllers for solar powered lighting controls. Fully encapsulated. Connection is via marine rated terminals. Use with sealed or vented batteries is field selectable. Switches lights for 2 to 10 hours on, for on all night or after dusk and before dawn. Versions for use in either 12V or 24V systems, includes automatic low battery voltage disconnect (L). LED's indicate charging and load disconnect condition. 5 year warranty

Specifications

System Battery Voltage	12V
Max VOC	30V
Connection	Screw terminals
Weight (kg)	0.4
Warranty	5

Reading the specifications

Morningstar SunLight is listed with 5 published specifications from Morningstar, including system battery voltage of 12V, max VOC of 30V, connection of Screw terminals and weight (kg) of 0.4. Those figures are what decide whether this unit fits your system, so read them against the equipment it will connect to before comparing price.

For a charge controller, the figures that matter most are supported battery voltages (12/24/36/48 V) and chemistries, conversion efficiency, typically 96–99% for a good MPPT unit, whether it offers a load output, temperature compensation and remote monitoring and type: MPPT or PWM. In any system with a battery and a separate array, the controller is what protects the most expensive component and determines how much of the array's output actually reaches storage.

Choosing a charge controller: the checks that matter

The checks below apply to any charge controller. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Prefer a unit with temperature compensation or a battery temperature sensor if the bank lives somewhere that gets hot or cold.
Choose MPPT over PWM for anything beyond a very small array. An MPPT controller harvests roughly 20–30% more energy because it converts excess panel voltage into charge current instead of throwing it away.
Size the current rating from array watts divided by battery voltage, then add at least 25% margin for cold, bright conditions where panels exceed their rated output.
Check the maximum PV input voltage against the array's Voc at your coldest expected temperature, not at 25 °C — Voc rises as temperature falls, and exceeding the limit destroys the controller instantly.

Common mistakes

Sizing on rated array watts alone and ignoring the voltage ceiling, which is the most common way controllers are killed.
Using a PWM controller with a high-voltage grid-tie panel — the voltage mismatch wastes a large share of the panel's output.
Running the load output beyond its rating instead of wiring heavy loads directly to the battery through a fuse.

Price and availability

Morningstar SunLight is listed at £ 92 (GBP). Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Morningstar locally before ordering.

Morningstar SunLight — frequently asked questions

How much does Morningstar SunLight cost?

Morningstar SunLight is listed at £ 92 (GBP). The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

What are the specifications of Morningstar SunLight?

We hold 5 published specifications for this charge controller, including system battery voltage 12V, max VOC 30V, connection Screw terminals, weight (kg) 0.4 and warranty 5. The full table is on this page, listed under model SL-10L-12V.

Who makes Morningstar SunLight?

Morningstar SunLight is a Morningstar product, listed under charge controllers with model reference SL-10L-12V. The Morningstar brand page lists the rest of its range so you can compare across the catalogue.

Is Morningstar SunLight right for my system?

That depends on what it has to connect to. For a charge controller, check whether it offers a load output, temperature compensation and remote monitoring, type: MPPT or PWM and rated charge current in amps, which must exceed the array's short-circuit current with margin against the rest of your equipment before price enters the decision. Size the current rating from array watts divided by battery voltage, then add at least 25% margin for cold, bright conditions where panels exceed their rated output.

Where can I buy Morningstar SunLight?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer — buying in-channel is what keeps the manufacturer's warranty valid.

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