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Hoefer® Power Supplies
Small footprint, large handle, and simple operation make Hoefer® Power Supplies easy to set up and use in your lab. With a large, easy-to-read LED, simply set the constant parameter, set the timer (if desired), and push start.
- Constant voltage or constant current mode with automatic crossover
- Four sets of 4 mm output jacks
- Continuous runs or a 999-minute timer
- Automatic recovery after power failure
- Open circuit detection
- Short circuit protection
Modes of operation
Constant Voltage Mode: the power supply will attempt to maintain the user selected voltage by automatically adjusting the current flow.
Constant Current Mode: the power supply will attempt to maintain the user selected current flow by automatically adjusting the voltage supplied.
Automatic Crossover: when the constant parameter (voltage or current) cannot be maintained due to power supply operating limits, the power supply automatically switches to maintaining the other parameter.
- PS300B 300 Volt Power Supply is designed for most electrophoresis techniques.
- PS200HC 200 Volt High Current Power Supply is ideal for large electrophoretic blotting applications and for low voltage electrophoresis runs.
- PS600 600 Volt Power Supply is designed for electrophoresis and blotting techniques, including large format and high throughput applications.
Hoefer® Mini Electrophoresis and Western Blot Package
Save time and money with a combination package.
- SE260-10A-75 Mighty Small II Mini Deluxe Vertical Unit
- TE22 Mighty Small Mini Transfer Tank
- PS300B 300 V, 500 mA, 90 W Power Supply
Specifications
| Item # | PS300B | PS200HC | PS600 |
| Voltage | 10 to 300 V in 1 V step | 5 to 200 V in 1 V step | 10 to 600 V in 1 V step |
| Current | 4 to 500 mA in 1 mA steps | 10 to 2000 mA in 1 mA steps | 4 to 750 mA in 1 mA steps |
| Max. Wattage | 90 W | 200 W | 150 W |
| Timer | 0 to 999 minutes | 0 to 999 minutes | 1 to 999 minutes, 1 min increment |
| Output Modes | Constant voltage or current | ||
| Output Jacks | 4 pairs in parallel, 4 mm plugs | ||
| Indoor Use | 39.2 to 104ºF | 4 to 40°C | ||
| Humidity | 80% | 80% | 0 to 80%, noncondensing |
| Voltage Input | 100 to 240 VAC, 50/60 Hz | ||
| Dims (D x W x H) | 11.02 x 4.92 x 13.18 In. | 28 x 12.5 x 33.5 cm | ||
| Weight | 5.29 lb | 2.4 kg | ||
Hoefer® Tall Air-Cool Vertical Electrophoresis System
Compact, rugged, and economical units ideal for educational laboratories with multiple users.
- Maximum glass plate size 18 x 24 cm
- Rugged injection molded construction is durable and assembles easily
- Run two gels with the addition of a divider plate
- Built-in casting stand seals leak free
- Choose from a wide variety of accessories
- Plates, clamps, spacers, and combs are interchangeable with the SE600 Series
Hoefer® Tall Air-Cool Complete Unit (SE410-15-15)
- Lower Buffer Chamber/Casting Stand on Leveling Base with High Voltage Leads, 1/ea
- Upper Buffer Chamber, 1/ea
- Safety Lid with Electrodes, 1/ea
- Glass Plates, 18 x 24 cm, 2/pk
- Clamp Assemblies, 8 cm, 2/pk
- Clamp Assemblies, 16 cm, 2/pk
- Cams, 2/pk
- Slotted Gasket for Upper Buffer Chamber, 1/ea
- Bubble Level, 1/ea
- Laminated Gasket for Casting Stand, 1/ea
- Spacer-Mate Alignment Template, 1/ea
- Wonder Wedge-Plate Separation Tool, 1/ea
- Gel Seal, 1/ea
- Comb, 15-well, 1.5 mm thick, 1/ea
- Spacers, 1.5 mm thick, 2 cm wide, 2/pk
Hoefer® Tall Air-Cool Basic Unit (SE410)
The same as above without the combs and spacers. Order one SE511 comb and one set of 24 cm long spacers separately.
Specifications
| Plate Size (W x H) | 7.09 x 9.45 In. | 18 x 24 cm |
| Spacers | 0.75 mm, 1.0 mm, 1.5 mm |
| Max. Power | 500 V, 60 mA, 20 W |
| Max. Temp. | 113ºF | 45°C |
| Indoor Use | 39.2 to 104ºF | 4 to 40°C |
| Humidity | Up to 80% |
| Dims (D x W x H) | 5.91 x 9.45 x 14.19 In. | 15 x 24 x 36 cm |
| Weight | 7.94 lb | 3.60 kg |
Hoefer® Mighty Small II Mini Vertical Electrophoresis System
Designed for quick screening and rapid separation.
- Maximum glass plate size 10 x 8 cm
- Efficient active cooling ensures sharp bands
- Quick and easy to assemble
- Requires minimal buffer
Easily upgradable to the SE260 (with optional accessories), resulting in the additional capability of accommodating both 10 x 8 and 10 x 10.5 cm gels, enabling a wider variety of precast gel options.
Hoefer® Mighty Small II Complete Units (SE250-10A)
- Lower Buffer Chamber, 1/ea
- Upper Buffer Chamber with Cooling Core, 1/ea
- Safety Lid with High Voltage Leads, 1/ea
- Casting Cradle with Sealing Gasket Set, 1/ea
- Casting Clamp Assemblies, 2/ea
- Cams, 4/ea
- Glass Plates, Rectangular, 10 x 8 cm, 10/ea
- Alumina Plates, Notched, 10 x 8 cm, 2/ea
- Spring Clamps, 4/ea
- Combs,10 well, 2/ea
- T-Spacers, 4/ea
- Well Locating Decals, 2/ea
- Gel Seal, 1/ea
Hoefer® Mighty Small II Basic Unit (SE250)
The same as above without the combs, spacers, and caster. For use with precast gels or order two SE211A combs, two sets of 8 cm long T-spacers, 10 x 8 cm rectangular glass and notched alumina plates, and a gel caster.Specifications
| Plate Size (W x H) | 3.34 x 3.15 In. | 10 x 8 cm |
| Spacers | 0.75 mm, 1.0 mm, 1.5 mm |
| Max. Power | 500 V, 500 mA, 12 W |
| Max. Temp. | 113ºF | 45°C |
| Indoor Use | 39.2 to 104ºC | 4 to 40°C |
| Humidity | Up to 80% |
| Dims (D x W x H) | 6.30 x 6.50 x 6.30 In. | 16 x 16.5 x 16 cm |
| Weight | 3.30 lb | 1.50 kg |
Hoefer® Air-Cooled Vertical Electrophoresis System
Compact, rugged, and economical units ideal for educational laboratories with multiple users.
- Maximum glass plate size 18 x 16 cm
- Rugged injection molded construction is durable and assembles easily
- Run two gels with the addition of a divider plate
- Built-in casting stand seals leak free
- Choose from a wide variety of accessories
- Plates, clamps, spacers, and combs are interchangeable with the SE600 Series
Hoefer® Air-Cooled Complete Unit (SE400-15-15)
- Lower Buffer Chamber/Casting Stand on Leveling Base with High Voltage Leads, 1/ea
- Upper Buffer Chamber, 1/ea
- Safety Lid with Electrodes, 1/ea
- Glass Plates, 18 x 16 cm, 2/pk
- Clamp Assemblies, 16 cm, 2/pk
- Cams, 2/pk
- Slotted Gasket for Upper Buffer Chamber, 1/ea
- Bubble Level, 1/ea
- Laminated Gasket for Casting Stand, 1/ea
- Spacer-Mate-Alignment Template, 1/ea
- Wonder Wedge Plate Separation Tool, 1/ea
- Gel Seal, 1/ea
- Comb, 15-well, 1.5 mm thick, 1/ea
- Spacers, 1.5 mm thick, 2 cm wide, 2/pk
Hoefer® Air-Cooled Basic Unit (SE400)
The same as above without the combs and spacers. Order one SE511 comb and one set of 16 cm long spacers separately.
Specifications
| Plate Size (W x H) | 7.09 x 6.30 In. | 18 x 16 cm |
| Spacers | 0.75 mm, 1.0 mm, 1.5 mm |
| Max. Power | 500 V, 60 mA, 20 W |
| Max. Temp. | 113ºF | 45°C |
| Indoor Use | 39.2 to 104ºF | 4 to 40°C |
| Humidity | Up to 80% |
| Dims (D x W x H) | 5.91 x 9.45 x 11.02 In. | 15 x 24 x 28 cm |
| Weight | 6.83 | 3.10 kg |
MyView™ Compact UV Transilluminator
- Uniform Illumination | Four 302 nm Bulbs
- Adjustable UV Safety Cover | Easy Access to Gels
- Large Scratch Resistant Viewing | 16.5 x 13.5 cm
The E3100 Compact UV Transilluminator has a surprisingly small footprint (just over 12 x 8 In.) yet provides industry leading performance. It will accommodate one or two mini gels on the 16.5 x 13.5 cm scratch resistant viewing surface.
The integrated UV blocking cover is made from a polymer that will not fluoresce in UV light. This allows clear viewing of DNA bands through the cover yet offers full UV blocking protection. Two friction hinges on the front edge of the cover allow for full adjustment. Position the cover horizontally for general viewing, tilt it at an angle for gel access and band cutting, or open fully to use the SmartDoc™ Imaging Enclosure (sold separately) for gel imaging with a smartphone.
The transilluminator’s four 6W bulbs evenly illuminate the viewing surface, and the 302 nm wavelength is ideal for Ethidium Bromide, SmartGlow™, SYBR Green®, Gel Green™ and many other common gel stains. Spacing of the UV bulbs, coupled with a reflector system and special diffusing filter glass provides exceptional uniformity across the viewing surface. This allows for quantification of DNA and higher quality imaging when used with a camera system.
Specifications
| Light source 4 x 6W UV Light Bulbs | 4 x 6W UV Light Bulbs |
| Safety cover UV blocking polycarbonate | UV blocking polycarbonate |
| Exterior dimensions | 10 x 8 x 2.75 In. | 25.4 x 20.32 x 6.99 cm |
| Electrical | 12VDC (AC power adapter included) |
| Output wavelength | Peak at 302 nm |
| Viewing surface | 6.5 x 5.3 In. | 16.5 x 13.5 cm |
| Weight | 2 lbs. | 0.9 kg. |
| Warranty | 2 years |
Item # E3100 is proudly made in the USA! Click here for more made in America products!
Accuris SmartBlue™ Transilluminators
Accuris SmartBlue™ Transilluminators have been developed for viewing DNA gels stained with new, safe fluorescent dyes. These new dyes, such as SmartGlow™, SYBR Green, Gel Green, have an excitation wavelength of 465-470 nm (visible blue light), and are safer to use than Ethidium Bromide.
- Blue light, safe for nucleic acids
- Uniform illumination (UI Technology)
- Optimal wavelength (465nm) for common safe stains
- Adjustable position, amber filter covers
- Optional amber viewing glasses: E4000-VG1
Safer for samples, safer for you: Accuris SmartBlue™ Transilluminators are the perfect partner for the most common safe DNA stains. These instruments emit blue light at a wavelength of 465 nm, perfect for excitation of most green fluorophors, including our Accuris’ SmartGlow™, SYBR Green, SYBR Safe, SYBR Gold, GelStar, GelGreen, to name a few. SmartBlue™ transilluminators can also work for excitation of EtBr (though fluorescence is not as bright as with UV), see our Technical Bulletin with sample images. Exposing DNA to blue wavelength does not cause molecular damage, and results in a much higher downstream cloning efficiency as compared to even short UV light exposures. In addition, the visible blue light is not damaging to the user’s skin and is less harmful to the eyes.*
Adjustable filter cover: Both the E4101 and SB4500 transilluminators come with emission filter covers. These amber covers, which rest above the viewing surface and gel, filter out the blue light, allowing the fluorescing DNA bands to be seen clearly. The covers can be set to a flat position for general gel viewing or can be set at an angle to provide easy access to the gel for band excision. The SB4500 has a two-position filter cover, and the E4101 features a hinged filter cover.
Optional amber viewing glasses: Our E4000-VG1 SmartBlue™ Plus Viewing Glasses offer efficient blocking of the blue light wavelength from the transilluminators, allowing clear visualization of the fluorescing DNA bands without the filter cover in place. These convenient glasses are recommended for users that are frequently excising DNA bands from gels. SmartBlue™ Plus glasses also block 100% of UV wavelength so they can also be used for viewing gels on a UV transilluminator.
UI technology, bright and clear images: The bright LED light plates and filter layer provides an extremely evenly lit viewing surface. Even in ambient light, bands of DNA can clearly be seen in stained gels. Images obtained using the SmartBlue™ Transilluminator are brighter and more balanced than those obtained using epi-illuminators which light from the sides.
Reliable, durable, and long-lasting: An array of super bright LEDs with a long, 30,000 hour service life provide the light source for the SmartBlue™ Transilluminators. Unlike those in a UV transilluminator, the filters in the SmartBlue™ systems will not solarize and degrade in performance over time. Gel bands can be excised directly on the scratch resistant, glass viewing surfaces. To save energy, the power switch includes an automatic 5 minute shutoff. SmartBlue™ Transilluminators are covered by a 2 year warranty.
* SmartBlue™ products use high intensity LED lights. Although the visible blue wavelength is significantly safer than UV light, it is recommended to not stare directly at the viewing surface without the amber cover in place.
Specifications
| Light Source | High Intensity Blue LEDs |
| Emission Filter Cover | Amber |
| Wavelength | Peak at 465 nm |
| E4000 Viewing Surface | 17 x 12 cm |
| E4000 Ext. Dimensions | 30.5 x 21.5 x 5 cm |
| E4101 Viewing Surface | 10.5 x 10.5 cm |
| E4101 Ext. Dimensions | 17 x 12 x 5 cm |
| Electrical | 100 to 240V, 50-60Hz |
| E4000 Weight | 1.2kg / 2.6lbs |
| E4101 Weight | 0.34kg / 0.75lbs |
| Warranty | 2 years |
Item # SB4500 is proudly made in the USA! Click here for more made in America products!
2025 LabValues Promotion!For a limited time enjoy discounted pricing on theENDURO™ Power Supply Series (E0303 and E0203)!
Special price applies only to the specified item; no substitutions.
Cannot be combined with other discounts or pricing. Not valid on prior purchases.
Promo is valid 01/06/2025 – 06/30/2025 or while supplies last.
All terms and conditions apply.
ENDURO™ Power Supply
- Two models (300V and 250V) available
- For DNA, RNA, or protein electrophoresis, and blotting applications
- Constant voltage or constant current with automatic crossover
- 250 V model also offers a constant power operating mode
- Timed or continuous operation
- Short circuit and over current/ over voltage protection
- No load and load change detection system
- Programming includes option for automatic recovery after power failure
- 3 year warranty
The new Enduro™ Power Supplies meet a wide range of applications including DNA, RNA, and protein electrophoresis, blotting, and many others. Two models are available with voltage ranges to 300 V and current ranges to 3000 mA. Operating modes include constant voltage or constant current with automatic crossover. In addition, the 250V model offers a constant power operating mode.
All parameters, including voltage, current, power (250 V model only), and time are easily set using the membrane keypad and displayed digitally on the back lit LCD. Compact in design with a small footprint, the Enduro™ Power Supplies are also stackable to save space. For easy viewing and setting of parameters on the bench or on a shelf, the front of the power supply can be raised with the integral folding feet.
Specifications
| Model | 300V | 250V |
| Output Voltage Range/Increments | 2-300V/1V | 5-250V/1V |
| Output Current Range/Increments | 4-500mA/1mA | 10-3000mA/10mA |
| Output Power Range/Increments | 90 watts max/n.a. | 1-300W/1W |
| Operating Constant Modes | current or voltage | current, voltage, or power |
| Timer | 1 -99 min, or continuous | 1min. to 99h 59min or continuous |
| Programmable | no | Yes (20 program capacity) |
| Dimensions (W x D x H) | 19 x 25 x 8 cm | 19 x 25 x 8 cm |
| Weight | 2.6 lbs | 5.7 lbs |
| Input Voltage | 110-230 V | 110-230 V |
2025 LabValues Promotion!
For a limited time enjoy discounted pricing on select
Labnet Enduro™ UV Transilluminators (U1001 and U1002)!
Special price applies only to the specified item; no substitutions.
Cannot be combined with other discounts or pricing. Not valid on prior purchases.
Promo is valid 01/06/2025 – 06/30/2025 or while supplies last.
All terms and conditions apply.
- Compact size with 21 x 26 cm viewing area
- Available in single or dual wavelength models
- Unique heavy duty hinge design can be held in place at any angle for gel cutting
- UV shield fully protects user from UV light
- Uniform UV Black Glass provides improved imaging contrast
Uniform white light diffusion for viewing negative and film positives. X-ray film, autoradiographs, microtiter plates, and stained gels can be viewed on the white light transmitting glass surface. This surface, permanently double-safety sealed into the unit for durability, provides a scratch and chemical resistant work area which can be cleaned easily. Durable transilluminator housing is scratch resistant, epoxy powder paint finish for easy cleaning. 2 year warranty
| Model | Order No | Description | Filter Size | Dimensions |
| TW-26 | 95-0208-01 | White Light Transilluminator, 115V | 21 x 26cm | 9.5"D x 13.25"W x 4.25"H |
| TW-43 | 95-0214-01 | White Light Transilluminator, 115V | 36 x 43cm | 19.13"D x 16"W x 4.25"H |
Safety Certifications: ETL, ETL/c on all 115V models.
- Increased ultraviolet output and intensity
- No light flicker
- Wider intensity range with variable selection (select models)
- Fast lamp start up
- Universal power supply
- Reduced electrical consumption
- Longer tube life
- Lighter weight
- Improved gel visualization and gel documentation
- 2 year warranty
Visi-Blue Transilluminators are designed for use with GFP stains. As compared to UV, the blue light will transmit through almost any transparent (plastic, glass, etc.) laboratory equipment. This is essential when monitoring and detecting DNA migration and protein expression in real time.
- Two models are available with surface areas as follows: 21x26cm or 20x40cm
- Select from models with 8-watts or 25-watts
- Amber cover (included) blocks blue light transmission and allows visualization of media above 500nm
Several specially designed converter plates convert a transilluminator's 302nm ultraviolet radiation .
- To white light for viewing protein gels, coomassie blue stained or silver stained media. The Converter Plate's uniquely phosphored glass assembly (patent pending) converts the UV radiation via a white diffuser
- Convert UV:
- To 460-470nm with the Visi-BlueT plate for viewing GFP stains
- To 365nm UV with the UV/UV plate for preparation and gel excision
- The scratch-resistant glass is mounted in a metal housing for durability
- Rubber seal stops the plate from sliding
- Handles are situated on two sides of the plate for easy handling
- Several standard plate sizes are available; custom sizes are also available
- Selection of each wavelength is by an easy turn of the dial located on one end of the housing
- The uniquely designed reflector surfaces mounted behind each tube provides maximum UV for fluorescence applications
- Lightweight and ergonomically designed for hand or stationary use
- 1 year warranty
Dimensions
3UV-34: 9.5L x 3W x 4.5D in. (241 x 76 x 114mm)
3UV-36: 12.5L x 3W x 4.5D in. (318 x 76 x 114mm)
3UV-38: 15.5L x 3W x 4.5D in. (394 x 76 x 114mm)
| 3UV Model | Part # 115V/60Hz |
Watts | Wavelengths |
| 3UV-34 | 95-0341-01 | 4 Watts | 254/302/365nm |
| 3UV-36 | 95-0342-01 | 6 Watts | 254/302/365nm |
| 3UV-38 | 95-0343-01 | 8 Watts | 254/302/365nm |
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