Hampton Bay DIY-300PS 300-watt Low-Voltage Transformer
Safety Information
IMPORTANT SAFETY INFORMATION TO REDUCE THE RISK OF FIRE OR INJURY.
- The secondary wiring is intended for shallow burial .( less than 6 inches / 152mm )
- For use with low voltage outdoor landscape lighting systems only.
- There are no serviceable parts inside the power supply unit. DO NOT DISASSEMBLE.
- Do not submerge the transformer.
- Do not connect two or more transformers in parallel.
- Do not use it with a dimmer.
- Plug the power supply unit directly into a GFCI wet location outlet.
- Do not use an extension cord.
- The maximum output of this transformer is 300 watts. Do not overload the transformer. Be sure that the total cumulative wattage of all 12-volt fixtures connected to the transformer is equal to or less than 300 watts.
- “For best performance and to limit the operation of the automatic thermal protector, do not install where air flow around the unit is overly restricted.”
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.https://manualslibraryy.com/blackmagic-design-atem-mini-installation-and-operation-manual/
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and the receiver.
- Connect the equipment to an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Warranty
WHAT IS COVERED
The manufacturer warrants this transformer to be free from defects in materials and workmanship for a period of two (2) years from the date of purchase. This warranty applies only to the original consumer and only to products used in normal use and service. If this product is found to be defective, the manufacturer’s only obligation, and your exclusive remedy, is the repair or replacement of the product at the manufacturer’s discretion, provided that the product has not been damaged through misuse, abuse, accident, modifications, alterations, neglect or mishandling.
WHAT IS NOT COVERED
This warranty shall not apply to any product that is found to have been improperly installed, set up, or used in any way not in accordance with the instructions supplied with the product. This warranty shall not apply to a failure of the product as a result of an accident, misuse, abuse, negligence, alteration, or faulty installation, or any other failure not relating to faulty material or workmanship. This warranty shall not apply to the finish on any portion of the product, such as surface and/or weathering, as this is considered normal wear and tear. The manufacturer does not warrant and specially disclaims any warranty, whether express or implied, of fitness for a particular purpose, other than the warranty contained herein. The manufacturer specifically disclaims any liability and shall not be liable for any consequential or incidental loss or damage, including but not limited to any labor/expense costs involved in the replacement or repair of said product.
Contact the Customer Service Team at 1-855-HD-HAMPTON or visit www.HamptonBay.com.
Pre-installation
TOOLS REQUIRED
HARDWARE INCLUDED
NOTE: Hardware not shown to actual size.
PACKAGE CONTENTS
| Part | Description | Quantity |
| A | Transformer | 1 |
| B | Photocell | 1 |
| C | Mounting Template | 1 |
| D | Hardware pack
| 1 |
Installation
Preparing the Cable
Being careful when splitting NOT to expose the copper wire, remove the landscape wire insulation 1/2 in. from both wires and twist ends. Also, refer to the strip length guide on the transformer.
Connecting the Cable to the Transformer
Lay the transformer on a flat, stable surface and insert the stripped end of one wire under the terminal clamping plate “COM”. Then tighten the screw. Repeat this procedure for clamping plate “12V” or “15V”. See the cable selection chart for the correct voltage tap.
NOTE: Gently pull on the landscape wire to verify if the connection is strong.
NOTE: Verify that there are no loose cable strands.
WARNING: Risk of Fire
Make sure there is no wire insulation under the clamping plate and firmly tighten the terminal screws.
Placing Your Fixtures and Routing the Cable
Lay your fixtures (not included) out where you want to locate them. Be sure do not to exceed the 300-watt rating of the transformer. Route the low-voltage cable to the fixtures. If there is extra cable, coil after the last fixture.
Attaching Your Fixtures
Turn the transformer on. Attach your fixtures to the cable to using cable connectors as shown. Place one connector on each side of the cable, then press together to lock. Prongs will pierce the cable to make contact and your fixtures should light up. Turn the transformer on. Attach your fixtures to the cable using the cable connectors as shown. Press the connector tight onto the cable until the prongs pierce the cable insulation. The fixture should light on.
Mounting the Transformer
To mount directly to a wall surface use the included screws (AA) as shown, suitable for mounting within 12 in. to 48 in. (0.3 m to 1.2 m) of the ground. When installing the screws, the spacing between the screw centers is 3.54 in. (90 mm). See the template (C) for correct spacing. Hang the transformer (A) onto the screws (AA).
Protecting or Hiding the Cable
Once all fixtures are in place and you are satisfied with their locations, the cable may be covered with mulch or buried up to 6 in. (15 cm) deep. Leave about 12 in. (30 cm) of cable after the last fixture.
Mounting the Photocell
Mount the photocell (B) bracket on a wall or other solid surface with the screws (BB) provided. Snap the sensor into the bracket. Route or coil the excess wire to protect it from lawnmowers, trimmers, etc.
Make sure the sensor not point to the light source at night time. Such as path light
Placing the sensor in areas receiving less sunlight at dusk (east side of the house, behind trees and bushes, under a deck) will have the transformer turned on earlier in the evening. Mounting the photocell in brighter locations will have the transformer turn on when it has become dark outside. The location, position, and orientation of the photocell can be adjusted until the transformer turns on at the
desired light level.
If the wires to the photocell are cut or broken, the photocell can be replaced. Unscrew the photocell connector cover from then transformer and pull the bi-pin connector out of the mating socket. The replacement part is inserted into the socket and the cap is screwed back onto the socket to provide a water-tight connection. Note that the bi-pin connector is polarized and can be inserted into
the socket only one way. The photo eye operation can be tested by turning the transformer mode to TEST. Replacement photocell is available in the store. Cover the connection hole with the dust cap when no photocell control wire is connected.
Operation
Setting the Clock
This setting allows you to set the clock to local time.
- Press MENU until the CLOCK LED indicator is lit and the digit indicator is flashing. Then press OK.
- When AM and PM begin to flash, press the UP or DOWN arrow button to select AM or PM and press OK.
- When the Hour begins to flash, press the UP or DOWN arrow to the desired hour and press OK.
- When the Minute begins to flash, press the UP or DOWN arrow to the desired Minute and press OK.
- The Clock setting is now complete.
Operating in Manual Mode
This setting allows you to immediately turn the lights on and turn them off when you no longer need them.
- Press MENU until the MANUAL ON/OFF LED indicator is lit and then press OK.
- The MANUAL ON/OFF mode is now set to ON. Press the UP arrow button to turn on the lights. Press the DOWN arrow button to turn off the lights.
Setting PHOTOCELL AUTO ON/OFF
This setting allows the photocell to turn the lights on at dusk and off at dawn.
- Press MENU until the PHOTOCELL AUTO ON/OFF LED indicator is lit and then press OK. The PHOTOCELL AUTO ON/OFF mode is now activated. The digit display shows the current time and the AM/PM LED indicator stays lit
- The start delay time is 0.1 sec. ± 1 sec. ; The off delay time is 60 sec. ± 10 sec.
Setting PHOTOCELL ON / TIME OFF
This setting allows the photocell to turn the lights on and you set the time they go off.
- Press MENU until the PHOTOCELL ON / TIME OFF LED indicator is lit and press OK. The display shows “OFF” and press OK.
- When AM and PM begin to flash, press the UP or DOWN arrow button to select AM or PM and press OK.
- When the Hour begins to flash, press the UP or DOWN arrow to the desired hour and press OK.
- When the Minute begins to flash, press the UP or DOWN arrow to the desired Minute and press OK.
- The setting is now complete. The PHOTOCELL ON/ TIMER OFF LED indicator stays lit and the display shows the current time. The lights will automatically turn on at night and will turn off on the setting time.
Setting the TIME ON/OFF
This setting allows you to control the time the lights turn on and when they go off.
- Press MENU until the TIME ON/OFF LED indicator is lit and press OK. The digit display shows “ON” and press OK.
- When the AM and PM LED begin to flash, press the UP or DOWN arrow button to select AM or PM and press OK.
- When the Hour begins to flash, press the UP or DOWN arrow to the desired hour and press OK.
- When the Minute begins to flash, press the UP or DOWN arrow to the desired Minute and press OK.
- The display shows “OFF” indicating that you can now set the OFF time and press OK.
- When AM and PM begin to flash, press the UP or DOWN arrow button to select AM or PM and press OK.
- When the Hour begins to flash, press the UP or DOWN arrow to the desired hour and press OK.
- When the Minute begins to flash, press the UP or DOWN arrow to the desired Minute and press OK.
Power outage
In the event of a power outage, the transformer functions may need to be reset.
Restoring the Factory Settings
To restore the transformer to its original factory settings, press and hold the OK button for 3 seconds. The display shows 88:88 and resets to 12:00 after 1 second to indicate that the transformer is now restored to factory settings.
Using the TEST function
This setting allows you to test your landscape lighting after installation. Press MENU until the TEST LED indicator is lit and press OK. The time of photocell feeling the external light signal: the lights will turn on at dusk and off at dawn within 0.5 seconds.
Display Auto Shut-down
In TEST mode, the display and LED indicator lights on the transformer turn off after approximately 10 seconds of idle time. In all other modes, this auto shutdown occurs after approximately 120 seconds. Press any button to turn on the transformer display.
Troubleshooting
| Problem | Probable Cause |
| All of the lights fail to work |
|
| Only some lights work |
|
| The lights are on during the day |
|
| The lights do not switch on at dusk |
|
Cable selection chart
12Volt Transformer Terminal
| Total Fixture Wattage | Cable Length | Wire Gauge Calibre |
| 1-120 | 50ft | 16 |
| 121-240 | 14 | |
| 241-300* | 12 | |
| 0-60 | 100ft | 16 |
| 61-120 | 14 | |
| 121-240 | 12 | |
| 0-60 | 150ft | 14 |
| 61-120 | 12 |
15Volt Transformer Terminal
| Total Fixture Wattage | Cable Length | Wire Gauge |
| 1-120 | 100ft | 16 |
| 121-240 | 14 | |
| 241-300* | 12 | |
| 0-60 | 150ft | 14 |
| 61-120 | 12 |
Not recommended for Halogen Landscape.
NOTE: This data is provided as a general guideline. Actual performance will depend on the installation layout, the fixtures, and the condition of the cable.
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Hampton Bay DIY-300PS 300-watt Low-Voltage Transformer-FAQs
How many lights can a 300-watt transformer support?
A 300-watt transformer can handle up to 8 lights with a total wattage of 160 watts. If more lights are needed, consider a higher-wattage transformer, such as a 375-watt model.
How do I reset my Hampton Bay low-voltage transformer?
Press and hold the MANUAL ON/OFF button for 10 seconds. The display will show “88” and all indicator lights will turn on, resetting the transformer to ON AT DUSK / OFF AT DAWN mode.
What voltage is required for a low-voltage transformer?
Low-voltage transformers operate at 30 volts or less, with most landscape lighting systems using 12V or 24V. Many professional-grade transformers have multiple voltage taps for precise adjustments.
Which app controls Hampton Bay outdoor lighting?
The Hubspace app allows you to control and schedule your Hampton Bay outdoor lighting with three independent zones of control.
How do I choose the right low-voltage transformer?
Calculate the total wattage of all connected lights and select a transformer that exceeds this wattage. To ensure safe operation, the transformer’s wattage should be at least 20% higher than the total load.
How far can low-voltage lighting run?
Follow the 100/100 rule: Use 100 feet of 12-gauge cable per 100 watts of lighting. Always check the fixture voltage with a voltmeter to prevent power loss.
Why aren’t my Hampton Bay lights working?
Check the bulbs: Ensure they are properly installed and functional.
Inspect the wiring: Turn off power, check all connections, and ensure proper wiring between the fixture and the junction box.
How do I adjust the voltage on my transformer?
Most transformers use manual adjustment, which involves switching voltage taps or rewiring the transformer windings. Always turn off power before making adjustments.
What is the 80% rule for transformers?
The National Electrical Code (NEC) recommends using only 80% of a transformer’s capacity to prevent overloading and extend its lifespan. Exceeding this limit can cause performance issues and reduce reliability.