ETRONIX PHOTON 2.1W 45AMP ESC BRUSHLESS FTX SPEC (WITH SHORT WIRE/CONNECTORS) ET0125FTX

Overview

The Etronix Photon 2.1W 45AMP ESC Brushless FTX Spec is a purpose-built electronic speed controller designed specifically for FTX RC cars. This replacement ESC comes pre-wired with short connectors, making it an ideal drop-in upgrade or replacement unit for FTX vehicles. Whether you're restoring a damaged RC car or upgrading to a more capable electronic control system, this brushless ESC delivers reliable performance for 1/10 scale RC driving in the UK. The Photon range offers systems from 45A through to 120A, ensuring there's a suitable option for every 1/10 application, from casual weekend bashing to more demanding driving conditions.

Built with performance and reliability in mind, the Etronix Photon 2.1W 45AMP ESC combines robust engineering with practical features that make it accessible to both experienced RC enthusiasts and those new to brushless RC cars. The splashproof design protects against water splashes and damp conditions, making this ESC versatile enough for various outdoor driving scenarios. With support for both LiPo and NiMH/NiCd battery packs, you have flexibility in your power source choice, and the integrated 2A 6V BEC (Battery Elimination Circuit) provides stable power to your receiver and servos without requiring a separate battery.

One of the standout aspects of this ESC is its programmability. When combined with the optional Etronix programmable setup card ET0107 (available separately), users can fine-tune ten different ESC parameters to suit their particular driving style and track conditions. This level of customisation means you can optimise your RC car's throttle response, braking characteristics, and other performance aspects, whether you're driving on asphalt, dirt, grass, or carpet surfaces.

Key Features

• FTX-Specific Wiring — This ESC comes pre-wired and configured specifically for FTX RC cars, with short wires and connectors that are ready to connect. This saves you time and eliminates guesswork when installing or replacing your ESC, ensuring compatibility straight out of the box.
• Splashproof Design — The splashproof protection rating means this ESC can handle water splashes and wet conditions without damage, making it suitable for outdoor RC driving in British weather. This protection extends the lifespan of your electronics and gives you peace of mind when driving near water or in damp conditions.
• 45A Constant Current with 260A Burst — The ESC delivers a steady 45A of continuous current with impressive 260A burst capacity. This power delivery ensures responsive acceleration and smooth throttle control, even when demanding maximum performance from your brushless motor during hard acceleration or uphill climbs.
• 4-Pole Sensorless Brushless Motor Support — Designed to work with 4-pole sensorless brushless motors, this ESC provides efficient power delivery and smooth operation. The sensorless design simplifies wiring and reduces complexity whilst maintaining excellent performance characteristics that experienced RC drivers expect.
• Flexible Battery Compatibility — Supporting both 2-3S LiPo and 5-10S NiMH/NiCd battery packs, this ESC gives you options for power sources. Whether you prefer the lighter weight and higher energy density of modern LiPo batteries or the reliability and affordability of NiMH/NiCd packs, this controller can handle both.
• 2A 6V BEC Output — The built-in BEC eliminates the need for a separate receiver battery pack. This 2A output provides sufficient power for most receiver and servo configurations on 1/10 scale RC cars, simplifying your build and reducing weight.
• Programmable Performance Tuning — When used with the optional ET0107 setup card, you can adjust up to ten different ESC parameters. This customisation capability allows you to match the ESC's behaviour to your specific motor, battery, and driving conditions for optimal performance.
• Compact and Lightweight Design — Measuring just 45 x 33 x 37mm and weighing only 90g, this ESC fits easily into tight spaces within your RC car chassis. The small size and light weight contribute to better weight distribution and handling characteristics.

Technical Performance

The Etronix Photon 2.1W 45AMP ESC represents solid engineering in the mid-range ESC category, offering the performance capabilities that 1/10 scale RC enthusiasts in the UK expect from a modern brushless controller. With 45A of constant current output, this ESC can reliably handle brushless motors up to specific KV ratings depending on your battery choice: up to 4350KV on 2S LiPo systems, or up to 2950KV on 3S LiPo systems. For those preferring traditional battery chemistry, the ESC supports NiMH and NiCd packs from 5 to 10 cells. The notable 260A burst current capacity provides those explosive acceleration moments that make RC car driving exciting, whilst the continuous 45A rating ensures the ESC can sustain performance during extended driving sessions. The build quality emphasises reliability, with splashproof construction that protects critical electronic components from moisture ingress. The sensorless brushless motor design used with this ESC reduces wiring complexity whilst delivering smooth, responsive performance across a wide throttle range. The 2A 6V BEC output is particularly important in modern RC cars, eliminating the weight and complexity of separate receiver batteries. The compact dimensions allow installation in many different FTX chassis designs, and the 90g weight is negligible in the context of overall vehicle mass, making this an excellent choice for upgrading existing systems or building new ones. Motor and battery compatibility limits must be observed carefully during configuration to protect the ESC and motor from damage, but when properly matched, this controller delivers the reliable, tunable performance that serious RC drivers expect.

What's in the Box

• Etronix Photon 2.1W 45AMP Brushless ESC (ET0125FTX)
• Pre-wired with short connectors for FTX cars

What You Need to Complete

• 4-pole sensorless brushless motor (within specified KV limits)
• 2-3S LiPo battery pack or 5-10S NiMH/NiCd battery pack
• Receiver compatible with ESC forward/reverse function
• Servos powered by the integrated BEC
• Optional: Etronix Setup Card ET0107 for parameter tuning

Frequently Asked Questions

• Is the Etronix Photon 2.1W 45AMP ESC suitable for FTX RC cars? — Yes, this ESC is specifically designed and pre-wired for FTX cars. The short connectors and configuration are tailored to FTX vehicle layouts, making it an ideal direct replacement or upgrade for FTX RC vehicles. The FTX-specific configuration means you can install it with confidence, knowing it's engineered to work seamlessly with your FTX car's electrical architecture.
• What battery does this ESC need? — The Etronix Photon supports both LiPo and NiMH/NiCd battery chemistries. For LiPo users, it accepts 2-3S packs (up to 11.1V). For those preferring traditional chemistries, it supports 5-10S NiMH/NiCd packs (up to 12V). When choosing a battery, ensure your brushless motor's KV rating is appropriate for your chosen cell count: up to 4350KV for 2S LiPo, or up to 2950KV for 3S LiPo. 4S LiPo is not compatible with this ESC.
• What motor should I use with this ESC? — This ESC is designed for 4-pole sensorless brushless motors only. The motor's KV rating must match your battery choice: if using 2S LiPo, select motors up to 4350KV; if using 3S LiPo, select motors up to 2950KV. Do not use this ESC with 4S LiPo systems, as this combination is not compatible and could damage the electronics.
• Can I programme this ESC? — The basic ESC functions work without programming, but for advanced customisation, you can purchase the optional Etronix Setup Card ET0107 (sold separately). This card enables adjustment of up to ten different parameters including throttle response, braking characteristics, and other performance tuning options, allowing you to optimise the ESC for your specific driving style and surface conditions.
• What does splashproof mean? — Splashproof design protects the ESC from water splashes and damp conditions, but it is not fully waterproof and should not be submerged. This protection is suitable for outdoor driving in British weather, around water features, and damp grass or muddy conditions, but the ESC should be properly sealed within the vehicle chassis for best protection.
• Does this ESC have a BEC? — Yes, the Etronix Photon includes an integrated 2A 6V BEC (Battery Elimination Circuit). This built-in voltage regulator supplies stable power to your receiver and servos directly from the main battery pack, eliminating the need for a separate receiver battery and simplifying your electrical system.
• What is the difference between this ESC and other brushless controllers? — The Etronix Photon 2.1W 45AMP differs from other ESCs through its FTX-specific configuration, with pre-wired connectors tailored to FTX cars. The 45A continuous/260A burst power rating positions it in the mid-range for 1/10 scale applications. The programmability via the ET0107 setup card, combined with the splashproof design and flexible battery support, offers good value in the brushless RC ESC market. The sensorless brushless design keeps wiring simple whilst maintaining responsive performance.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the ETRONIX PHOTON 2.1W 45AMP ESC BRUSHLESS FTX SPEC (WITH SHORT WIRE/CONNECTORS) ET0125FTX today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.