SKU: 21860878686

Solartech 55W 24V Solar Panel - SPM055M-WP-F

Sale price$132.03 Regular price$146.70
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Description

Solartech 55W 24V Solar Panel - SPM055M-WP-FDesigned specifically for 24V off grid applications, the SolarTech Power SPM055M WP F delivers 55W of clean energy with robust monocrystalline efficiency. Featuring a 68 cell configuration that produces a nominal 24V output and a weather resistant junction box (cables not included for field wiring), this panel is ideal for 24V battery charging, remote power systems, telecommunications, water pumping, lighting, and small residential, RV, marine, or

Designed specifically for 24V off-grid applications, the SolarTech Power SPM055M-WP-F delivers 55W of clean energy with robust monocrystalline efficiency. Featuring a 68-cell configuration that produces a nominal 24V output and a weather-resistant junction box (cables not included for field wiring), this panel is ideal for 24V battery charging, remote power systems, telecommunications, water pumping, lighting, and small residential, RV, marine, or commercial DC installations.


Key Features & Benefits

55W Monocrystalline Power Output: Delivers reliable power using 68 monocrystalline silicon cells (156mm × 32.5mm) arranged in a 4×17 series matrix, providing solid performance with 13.1% module efficiency. (Also available in 50W model)

24V Nominal Output (34.2V Vpm): Designed specifically for 24V off-grid systems, delivering an optimal charging voltage for 24V battery banks. The higher voltage also reduces line loss over long wire runs compared to 12V panels.

Junction Box with No Pre-Attached Cables: Features a weather-resistant IP65-rated junction box with no cables, allowing for field wiring with custom wire lengths and connector types using standard terminals. Ideal for installations requiring specific cable runs or conduit connections.

Durable Construction: Built with high-transmission 3.2mm tempered glass, double-layer EVA encapsulation, white polyester back cover, and an anodized aluminum frame for long-lasting outdoor performance.

Compact & Lightweight Design: Measures 25.7" × 25.2" × 1.38" (652mm × 639mm × 35mm) and weighs 13.2 lbs (6.0 kg), offering a balance of power and portability.

1000V System Voltage: Maximum system voltage of 1000V DC allows for flexible array configurations with multiple panels in series for larger 24V systems.

Wide Operating Temperature Range: Functions reliably in extreme conditions from -40°C to +85°C.

Outstanding Low-Light Performance: Generates power even during dawn, dusk, and overcast conditions, maximizing daily energy harvest.


Technical Specifications



Specification Detail
Model SPM055M-WP-F
Max Power (Pm) 55W
Module Efficiency 13.1%
Tolerance ±5%
Nominal Voltage 24V
Maximum Power Voltage (Vpm) 34.2V
Maximum Power Current (Ipm) 1.61A
Open Circuit Voltage (Voc) 42.1V
Short Circuit Current (Isc) 1.85A
Maximum System Voltage 1000V DC
Series Fuse Rating 10A
Operating Temperature -40°C to +85°C
Storage Humidity <90%

Temperature Coefficients



Coefficient Value
Pmax -0.46%/°C
Voc -0.36%/°C
Isc 0.05%/°C

Mechanical Specifications



Specification Detail
Solar Cells 68 Monocrystalline cells (156mm × 32.5mm) in 4×17 matrix
Front Cover High transmission 3.2mm (1/8") tempered glass
Encapsulant EVA (double layers)
Back Cover White polyester
Frame Anodized aluminum
Junction Box IP65 rated (no pre-attached cables)
Dimensions 25.7" × 25.2" × 1.38" (652mm × 639mm × 35mm)
Weight 13.2 lbs (6.0 kg)

Product Documents

Spec Sheet: Download Spec Sheet

Shipping Notes
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Exchange/Return Notes
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SKU: 21860878686

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4.6 ★★★★★
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Sam C
Charlottesville, US
★★★★★ 4
Super Cute and Dainty—Perfect for Gifting!
I ordered this dainty pink heart initial necklace as a birthday gift, and it is honestly so adorable in person. The pink heart has a really nice, vibrant color, and the gold finish looks super trendy and clean. It’s the perfect length (16 inches with a 2-inch extender), so it sits right on the collarbone and layers really well with other gold chains. It makes for a really sweet, personalized gift for a mom, friend, or even a preteen girl who loves that "soft girl" aesthetic. The initial letter is subtle but clear, and it doesn't feel overly heavy around your neck. Why I'm giving it 4 stars instead of 5: The only real downside is that the chain is very thin and delicate. You definitely have to be careful not to yank it, and I wouldn't recommend sleeping in it or wearing it in the shower if you want the gold plating to last. It’s also smaller than it looks in some of the product pictures, so just make sure your expecting something truly miniature and "dainty." Overall, for the price point, it’s an awesome piece of trendy jewelry. It looks much more expensive than it actually is, and the packaging makes it super easy to gift right out of the box.
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Reviewed in the United States on May 25, 2026
R
Rebecca
Pawtucket, US
★★★★★ 5
Pretty initial necklace
Color: A, Color: A
This is a cute necklace that I ordered for my daughter. This necklace is nice because it's decent quality but I wouldn't be devastated if it broke or got lost. The initial is nicely made and the chain is delicate. It's the perfect size for my 7 year old and I think my 11 year old would also like it. When I ordered it, it was $15 but now there is a coupon to make it $12 which is a great value. I would buy it for myself if it was silver. It comes in a nice box that makes it great for gifting.
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Reviewed in the United States on February 8, 2026
K
Kayla
Grantham, US
★★★★★ 4
Great for daughter or friend!
Color: E, Color: E
This is absolutely perfect for a daughter for Valentine’s Day or a gift just to give. The initial is in a gold with a gold chain and a precious pink heart. Easy to use gold clasp to put it on or off. The chain seems pretty regular like most chains, but seems durable enough to wear everyday. It hasn’t tarnished or turned any necks green so it’s skin safe I would say. Wouldn’t recommend showering with it, but it has stayed gold with no tarnish. It is simple and cute for a friend, daughter, even a mom.
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Reviewed in the United States on February 7, 2026
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What_Jenna_Reads
Belleville, US
★★★★★ 5
Great for my 8 year old daughter. Dainty and elegant
Color: K, Color: K
This necklace is perfect for my 8 year old daughter. She loves dressing up her clothes with fun necklaces and this one is so elegant and pretty. The chain is very thin so be mindful of that. It could definitely easily break if not taken care of. I do like that it has an adjustable clasp so I can shorten it to where she likes it. The chain is actually a good length so there is room to grow. It is plated so definitely not recommended to wear in water of any kind as it will eventually turn. For the price it’s a good little necklace for younger girls and having their initial on it will be something special for them. The box it comes in is sweet and has a really motivational saying in it.
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Reviewed in the United States on February 5, 2026
M
Maegan Murphy
Waukegan, US
★★★★★ 5
Must have
This initial necklace is adorable. The gold tone is pretty and shiny without looking cheap, and the pink heart adds the perfect little pop of color. It feels lightweight but well made, and the clasp is easy to use while still feeling secure. I bought it for my daughter and it’s the perfect everyday necklace cute, simple, and special without being over the top. It’s held up well so far with no discoloration, and it looks great layered or worn alone. Such a great little personalized piece.
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Reviewed in the United States on February 5, 2026

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