Best Egg Candlers for Checking Hatching Eggs

Every product on this list is a dedicated egg candler: a torch or lamp that shines a bright, cool light through the shell so you can follow the embryo and air sac during incubation. We compared them by light strength, power supply, cup size and how easily they handle dark or speckled shells, using the details on each listing.

Which Egg Candler Suits Your Egg Sizes and Shell Colours?

Match the candler to your egg dimensions and shell colour, using any stated compatibility as a starting point rather than a guarantee. Titan and one Fdit model mention all egg types, while chendongdong specifically names light and dark hatching eggs. Darker shells can be harder to see through, so a description saying high intensity does not establish how clearly every egg will appear. Measure a representative egg’s length and widest diameter in cm, then request the lamp opening dimensions and supported egg sizes. For mixed batches, compare the smallest and largest eggs you intend to inspect. Check whether any required adapter is included and how the egg should rest against the opening without pressure. HEEPDD mentions whole egg coverage, but its title gives no opening measurement or brightness figure. An egg candler for hatching eggs should fit your actual eggs, not merely sound broadly compatible.

How Do These Egg Candlers Compare?

The table pairs each candler with the keeper it suits and one stated detail, such as light strength or power supply. Check the cup fits your eggs first.

Which Power Supply Fits Your Candling Routine?

Choose battery power for a setup without a nearby socket, or compare rechargeable and USB options with the power sources you already have. The Fdit ABS tester states battery power, but its title does not identify the battery type or say batteries are supplied. EecoO is described as rechargeable, while Flylin specifies USB cold light and the Mini model names both USB and battery power. USB does not, by itself, establish that a lamp contains a rechargeable battery. Check the required supply, connection type and included accessories separately. Measure the distance from your inspection surface to the intended power source, allowing room to handle eggs without pulling a cable tight. For a battery model, check replacement requirements and the battery compartment instructions. Treat cold light as listing wording, not permission to leave a lamp against an egg for extended periods. Prepare the power supply before removing eggs for inspection.

Do You Need a Separate Candler or an Incubator?

Some incubators have a built in candling light, but most keepers still find a separate handheld candler easier, because you can check one egg at a time close to the incubator without opening the whole machine for long. A separate candler also works with eggs under a broody hen. Keep sessions short: take out a few eggs at a time, check each one for a few seconds and return them quickly so they do not cool. Most keepers candle around day 7 to 10 for hens’ eggs, again around day 14 to 16, and once more just before lockdown at day 18. Duck, goose and quail eggs follow their own timetables, so check guidance for the species you are hatching. If your incubator does not have a candling light, a torch style candler with a soft rubber cup is the simplest addition.

How Should You Clean and Store an Egg Candler?

Clean an egg candler according to its instructions, then store it dry with the light opening protected from dirt and damage. Switch it off and disconnect any power cable before cleaning, and check the manual for battery removal guidance. Do not assume an ABS or metal body is waterproof. Ask which cloths and cleaning agents are suitable, particularly for any part that touches the shell. If the opening has a removable piece, confirm that it is designed to come off rather than pulling at it. Avoid soaking the lamp or spraying liquid into its switch, charging connection or battery compartment. After cleaning, check that everything is dry and correctly reassembled before using the light again. Keep the working surface clean and wash your hands before and after handling eggs. Store the unit where it cannot roll onto the floor, and follow its instructions for battery storage during longer breaks. Inspect the housing and any cable for visible damage before the next session.

For related kit, read our guide to egg incubators or the chicken brooders guide.

Frequently Asked Questions

Last reviewed: 22 October 2026.