Custom LED Numeric Display for Water Heaters (Temperature)
Electric Water Heater LED Digital Display - Hongcheng Optoelectronics LED Manufacturer
This LED digital display is designed for storage and instant electric water heater control boards. It shows the set temperature, tank temperature, and status icons such as heating, keep-warm, and shower, and withstands high-temperature, high-humidity environments. Built with Grade A chips and LED SMD lamps, it resists high/low temperature cycling, is highly anti-static, and offers a long service life — customized for mid-to-high-end customers.
1. Through-hole (pin) type
2. SMD type
3. Phosphor-film excitation type
and other manufacturing processes are available, customized to the needs of mid-to-high-end customers. Drawings and samples are welcome, and we can produce a 3D sample so you can preview the result before mass production.
Categories: LED Numeric Display Series (7-Segment)


Applications
This LED digital display is designed for storage and instant electric water heater control boards. It shows the set temperature, tank temperature, and status icons such as heating, keep-warm, and shower, and withstands high-temperature, high-humidity environments.
Quick Specifications
| Product Name | LED Digital Display for Electric Water Heater (Temperature Display) |
| Package Type | Standard package |
| Dimensions | See datasheet |
| Mounting | See datasheet |
| Emitting Colors | Multiple colors available (red / yellow / green / blue / white / orange); customization supported |
| Chip Grade | Grade A chips |
| Wire Bonding | 99.99% pure gold wire bonding |
| Environmental Certification | RoHS |
| Manufacturer | Dongguan Hongcheng Optoelectronics Co., Ltd. |
| Customization | Color, brightness, wavelength, encapsulant, and pin length can be customized |
| Detailed Parameters | Full electrical parameters are available in the datasheet PDF on this page |
💡 Typical applications: numeric displays for instruments, timers, EV charging stations and home appliances. Multi-digit and common-cathode/anode customization available.
Q: Common cathode or common anode - how to choose?
A: It depends on the driver circuit: shift-register/constant-current drivers usually pair with common cathode, transistor direct drive with common anode. Send us your schematic for confirmation.

