💡 New range: Boke DALI-2 LED drivers | 10–240 W | 5-year warranty Explore the range

☎ 0800 88 87 86  |  +64 22 522 4414

Over 15 years experience of providing support of MEAN WELL Power Supplies

1 5

Image shown is a representation only. Exact specifications should be obtained from the product datasheet.

Mean Well

Mean Well LPH-18-12 Power Supply 18W 12V 1.5A

slim plastic caseeconomicalIP67
SKU LPH-18-12
Log in to see price Trade pricing & online ordering for account holders
Log in or apply for a trade account →
Available to order
|

Overview

LPH-18-12 is the 12V output model of this series: rated current 1.5A, rated power 18W, typical efficiency 77%.

Features

  • 180-264VAC input only
  • Fully encapsulated with IP67 level (Note.5)
  • Protections:Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Class Ⅱ power unit, no FG
  • Pass LPS
  • 100% full load burn-in test
  • Display devices for decorative & advertising accessories (Note.6)
  • General-purpose electronics operated in dusty or damp environments
  • High reliability / Low cost
  • 2 years warranty

Specifications

LPH-18-12Specifications from the official datasheet (2026-09-07 edition)

OUTPUT

DC VOLTAGE
12V
RATED CURRENT
1.5A
CURRENT RANGE
0 ~ 1.5A
RATED POWER
18W
RIPPLE & NOISE (max.)Note.2
120mVp-p
VOLTAGE TOLERANCENote.3
±3.0%
LINE REGULATION
±1.0%
LOAD REGULATION
±2.0%
SETUP, RISE TIME
1500ms, 30ms / 230VAC
HOLD UP TIME (Typ.)
50ms/230VAC at full load

INPUT

VOLTAGE RANGE
180 ~ 264VAC 254 ~ 370VDC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY(Typ.)
77%
AC CURRENT
0.3A/230VAC
INRUSH CURRENT(Typ.)
COLD START 50A(twidth=155μs measured at 50% Ipeak) at 230VAC
MAX. No. of PSUs on 16A CIRCUIT BREAKER
17 units (circuit breaker of type B) / 28 units (circuit breaker of type C) at 230VAC
LEAKAGE CURRENT
0.25mA / 240VAC

PROTECTION

OVERLOAD
Above 105% rated output power Protection type : Hiccup mode, recovers automatically after fault condition is removed
OVER VOLTAGE
13.8~ 16.2V Protection type : Shut off o/p voltage, clamping by zener diode
OVER TEMPERATURE
Hiccup mode, recovers automatically after temperature goes down

ENVIRONMENT

WORKING TEMP.
-30~ +70℃ (Refer to "Derating Curve")
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-40 ~ +80℃, 10 ~ 95% RH
TEMP. COEFFICIENT
±0.03%/℃ (0 ~ 50℃)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes

SAFETY & EMC (Note 4)

SAFETY STANDARDS
IEC/BS EN/EN 62368-1, BIS IS15885(NOTE 8), EAC TP TC 004, IP67 approved; design refer to UL1310 Class 2, CAN/CSA No. 223-M91
WITHSTAND VOLTAGE
I/P-O/P:3KVAC
ISOLATION RESISTANCE
I/P-O/P:>100M Ohms / 500VDC / 25℃/ 70% RH
EMC EMISSION
Compliance to BS EN/EN55032 (CISPR32) Class B, BS EN/EN61000-3-2 Class A, BS EN/EN61000-3-3, EAC TP TC 020
EMC IMMUNITY
Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11, BS EN/EN55035, light industry level, EAC TP TC 020

OTHERS

MTBF
7827.3K hrs min. Telcordia SR-332 (Bellcore) ; 1311.1Khrs min. MIL-HDBK-217F (25℃)
DIMENSION
140*30*22(L*W*H)
PACKING
0.175Kg; 70pcs/13.3Kgs/0.71CUFT
Test conditions and notes7
  1. 1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature.
  2. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor.
  3. 3. Tolerance : includes set up tolerance, line regulation and load regulation.
  4. 4. The power supply is considered as a component that will be operated in combination with final equipment. Since EMC performance will be affected by the complete installation, the final equipment manufacturers must re-qualify EMC Directive on the complete installation again. (as available on https://www.meanwell.com//Upload/PDF/EMI_statement_en.pdf)
  5. 5. Suitable for indoor use or outdoor use without direct sunlight exposure.
  6. 6. This product is not intended for LED applications in the EU and China.(In the EU NPF/LPF/XLG series are recommended.)
  7. 7. Products sourced from the China regions may not have the BIS logo, please contact your MEAN WELL sales for more information.

Technical drawings

LPH-18-12 Mechanical Specification
Mechanical Specification
LPH-18-12 Recommend Mounting Direction
Recommend Mounting Direction
LPH-18-12 Block Diagram
Block Diagram

Downloads

FAQ

Can I use the LPH-18-12 for 12V LED strip lighting?

Yes, this is a 12V single-output switching power supply, which suits the 12V format used for LED strips (the sheet notes it is not intended for LED applications in the EU and China). The total connected load should stay within 18W and 1.5A.

Is the LPH-18-12 suitable for small 12V illuminated signs or display lighting?

Yes, it fits small 12V signage or display lighting loads that need a constant 12V output. Its 18W capacity and slim 140 x 30 x 22 mm case make it suited to compact lighting applications.

Can this power supply be used for outdoor or damp-location 12V lighting?

Yes, it is fully encapsulated to IP67 and suits indoor use or outdoor use without direct sunlight exposure. Its operating temperature range is -30°C to +70°C, with derating at higher temperatures per the derating curve.

How many meters of 12V LED strip can the LPH-18-12 run?

Maximum strip length is calculated as 18W divided by your strip's rated watts per meter. Check your strip rated power per meter, and make sure the strip is a 12V constant voltage type.

What is the difference between the LPH-18 voltage versions?

The specified LPH-18 siblings are LPH-18-12 at 18W, 12V, 1.5A; LPH-18-24 at 18W, 24V, 0.75A; and LPH-18-36 at 18W, 36V, 0.5A. The wattage stays the same, while voltage and output current change by model.

Payment & Security

Payment methods

  • American Express
  • Apple Pay
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Union Pay
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Other LPH-18 Models

2 other models
ModelPowerVoltageCurrentIP Rating
Mean Well LPH-18-24 Power Supply 18W 24V 750mA 18W 24V 0.75A IP67 View
Mean Well LPH-18-36 Power Supply 18W 36V 500mA 18W 36V 0.5A IP67 View
View all 38 LP Series models
{ "id":8423855849771, "variants" :[{ "context":"default", "variant_id": 45636153442603, "sku":"LPH-18-12", "inventory_qty" : 0, "customer" :false, "custom_html" :"\u003ca class=\"text-current logged-out-price logged-out\" href=\"https:\/\/wellforces.co.nz\/customer_authentication\/redirect?locale=en\u0026region_country=NZ\"\u003e\n \u003cspan \u003ePlease \u003c\/span\u003e \u003cspan class=\"login-text\"\u003eLogin\u003c\/span\u003e \u003cspan\u003e for Pricing\u003c\/span\u003e\n \u003c\/a\u003e", "volume_html" :"\u003cvolume-pricing class=\"parent-display inside_product_form\" id=\"volume-pricing-main\" \u003e\u003c\/volume-pricing\u003e" } ] }
Mean Well LPH-18-12 Power Supply 18W 12V 1.5A
Mean Well

Mean Well LPH-18-12 Power Supply 18W 12V 1.5A

Log in to see price

LPH-18-12 is the 12V output model of this series: rated current 1.5A, rated power 18W, typical efficiency 77%.

Features

  • 180-264VAC input only
  • Fully encapsulated with IP67 level (Note.5)
  • Protections:Short circuit / Overload / Over voltage / Over temperature
  • Cooling by free air convection
  • Class Ⅱ power unit, no FG
  • Pass LPS
  • 100% full load burn-in test
  • Display devices for decorative & advertising accessories (Note.6)
  • General-purpose electronics operated in dusty or damp environments
  • High reliability / Low cost
  • 2 years warranty
View product

  • Call us

    0800 88 87 86

  • Email us

    contact@wellforces.co.nz

  • Business Hours

    Mon-Fri 8:30am-5:00pm

  • Wholesale and Trade Account

    Let's grow together
Back to top